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Finding the Fourth Proportional to 493,614.20, 740,421.34 and 119,637.20

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Solution

The fourth proportional to 493,614.20, 740,421.34 and 119,637.20 is: 179,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,614.20 : 740,421.34 = 119,637.20 : x
  2. Step 2: Convert to fraction form
    493,614.20/740,421.34 = 119,637.20/x
  3. Step 3: Cross multiply
    493,614.20x = 740,421.34 × 119,637.20
  4. Step 4: Simplify right side
    493,614.20x = 88,581,935,937.85
  5. Step 5: Solve for x
    x = 88,581,935,937.85/493,614.20
  6. Step 6: Final answer
    x = 179,455.81

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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.