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Finding the Fourth Proportional to 493,614.10, 740,421.18 and 119,637.10

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Solution

The fourth proportional to 493,614.10, 740,421.18 and 119,637.10 is: 179,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,614.10 : 740,421.18 = 119,637.10 : x
  2. Step 2: Convert to fraction form
    493,614.10/740,421.18 = 119,637.10/x
  3. Step 3: Cross multiply
    493,614.10x = 740,421.18 × 119,637.10
  4. Step 4: Simplify right side
    493,614.10x = 88,581,842,753.78
  5. Step 5: Solve for x
    x = 88,581,842,753.78/493,614.10
  6. Step 6: Final answer
    x = 179,455.66

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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.