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Finding the Fourth Proportional to 147,208.40, 220,812.60 and 73,480.40

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Solution

The fourth proportional to 147,208.40, 220,812.60 and 73,480.40 is: 110,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,208.40 : 220,812.60 = 73,480.40 : x
  2. Step 2: Convert to fraction form
    147,208.40/220,812.60 = 73,480.40/x
  3. Step 3: Cross multiply
    147,208.40x = 220,812.60 × 73,480.40
  4. Step 4: Simplify right side
    147,208.40x = 16,225,398,173.04
  5. Step 5: Solve for x
    x = 16,225,398,173.04/147,208.40
  6. Step 6: Final answer
    x = 110,220.60

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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.