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Finding the Fourth Proportional to 508,986.92, 763,472.48 and 124,739.52

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Solution

The fourth proportional to 508,986.92, 763,472.48 and 124,739.52 is: 187,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,986.92 : 763,472.48 = 124,739.52 : x
  2. Step 2: Convert to fraction form
    508,986.92/763,472.48 = 124,739.52/x
  3. Step 3: Cross multiply
    508,986.92x = 763,472.48 × 124,739.52
  4. Step 4: Simplify right side
    508,986.92x = 95,235,190,064.71
  5. Step 5: Solve for x
    x = 95,235,190,064.71/508,986.92
  6. Step 6: Final answer
    x = 187,107.34

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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.