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Finding the Fourth Proportional to 146,716.40, 220,074.60 and 99,477.20

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Solution

The fourth proportional to 146,716.40, 220,074.60 and 99,477.20 is: 149,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,716.40 : 220,074.60 = 99,477.20 : x
  2. Step 2: Convert to fraction form
    146,716.40/220,074.60 = 99,477.20/x
  3. Step 3: Cross multiply
    146,716.40x = 220,074.60 × 99,477.20
  4. Step 4: Simplify right side
    146,716.40x = 21,892,404,999.12
  5. Step 5: Solve for x
    x = 21,892,404,999.12/146,716.40
  6. Step 6: Final answer
    x = 149,215.80

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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.