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Finding the Fourth Proportional to 266,150.76, 399,172.15 and 97,613.71

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Solution

The fourth proportional to 266,150.76, 399,172.15 and 97,613.71 is: 146,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,150.76 : 399,172.15 = 97,613.71 : x
  2. Step 2: Convert to fraction form
    266,150.76/399,172.15 = 97,613.71/x
  3. Step 3: Cross multiply
    266,150.76x = 399,172.15 × 97,613.71
  4. Step 4: Simplify right side
    266,150.76x = 38,964,673,614.26
  5. Step 5: Solve for x
    x = 38,964,673,614.26/266,150.76
  6. Step 6: Final answer
    x = 146,400.76

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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.