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Finding the Fourth Proportional to 124,952.80, 187,472.40 and 120,632.80

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Solution

The fourth proportional to 124,952.80, 187,472.40 and 120,632.80 is: 180,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,952.80 : 187,472.40 = 120,632.80 : x
  2. Step 2: Convert to fraction form
    124,952.80/187,472.40 = 120,632.80/x
  3. Step 3: Cross multiply
    124,952.80x = 187,472.40 × 120,632.80
  4. Step 4: Simplify right side
    124,952.80x = 22,615,320,534.72
  5. Step 5: Solve for x
    x = 22,615,320,534.72/124,952.80
  6. Step 6: Final answer
    x = 180,990.91

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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.