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Finding the Fourth Proportional to 146,697,728.80, 220,046,593.20 and 44,448,480.40

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Solution

The fourth proportional to 146,697,728.80, 220,046,593.20 and 44,448,480.40 is: 66,672,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,697,728.80 : 220,046,593.20 = 44,448,480.40 : x
  2. Step 2: Convert to fraction form
    146,697,728.80/220,046,593.20 = 44,448,480.40/x
  3. Step 3: Cross multiply
    146,697,728.80x = 220,046,593.20 × 44,448,480.40
  4. Step 4: Simplify right side
    146,697,728.80x = 9,780,736,684,936,972
  5. Step 5: Solve for x
    x = 9,780,736,684,936,972/146,697,728.80
  6. Step 6: Final answer
    x = 66,672,720.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.