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Finding the Fourth Proportional to 480,752.70, 721,247.13 and 165,214.14

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Solution

The fourth proportional to 480,752.70, 721,247.13 and 165,214.14 is: 247,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,752.70 : 721,247.13 = 165,214.14 : x
  2. Step 2: Convert to fraction form
    480,752.70/721,247.13 = 165,214.14/x
  3. Step 3: Cross multiply
    480,752.70x = 721,247.13 × 165,214.14
  4. Step 4: Simplify right side
    480,752.70x = 119,160,224,310.42
  5. Step 5: Solve for x
    x = 119,160,224,310.42/480,752.70
  6. Step 6: Final answer
    x = 247,861.79

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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.