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Finding the Fourth Proportional to 124,737.52, 187,103.55 and 53,707.40

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Solution

The fourth proportional to 124,737.52, 187,103.55 and 53,707.40 is: 80,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,737.52 : 187,103.55 = 53,707.40 : x
  2. Step 2: Convert to fraction form
    124,737.52/187,103.55 = 53,707.40/x
  3. Step 3: Cross multiply
    124,737.52x = 187,103.55 × 53,707.40
  4. Step 4: Simplify right side
    124,737.52x = 10,048,845,768.09
  5. Step 5: Solve for x
    x = 10,048,845,768.09/124,737.52
  6. Step 6: Final answer
    x = 80,559.93

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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.