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Finding the Fourth Proportional to 466,279.49, 699,419.18 and 129,320.15

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Solution

The fourth proportional to 466,279.49, 699,419.18 and 129,320.15 is: 193,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,279.49 : 699,419.18 = 129,320.15 : x
  2. Step 2: Convert to fraction form
    466,279.49/699,419.18 = 129,320.15/x
  3. Step 3: Cross multiply
    466,279.49x = 699,419.18 × 129,320.15
  4. Step 4: Simplify right side
    466,279.49x = 90,448,990,096.68
  5. Step 5: Solve for x
    x = 90,448,990,096.68/466,279.49
  6. Step 6: Final answer
    x = 193,980.20

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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.