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Finding the Fourth Proportional to 493,753.67, 740,630.42 and 138,767.69

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Solution

The fourth proportional to 493,753.67, 740,630.42 and 138,767.69 is: 208,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,753.67 : 740,630.42 = 138,767.69 : x
  2. Step 2: Convert to fraction form
    493,753.67/740,630.42 = 138,767.69/x
  3. Step 3: Cross multiply
    493,753.67x = 740,630.42 × 138,767.69
  4. Step 4: Simplify right side
    493,753.67x = 102,775,572,527.13
  5. Step 5: Solve for x
    x = 102,775,572,527.13/493,753.67
  6. Step 6: Final answer
    x = 208,151.51

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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.