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Finding the Fourth Proportional to 124,689.77, 187,060.96 and 40,443.39

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Solution

The fourth proportional to 124,689.77, 187,060.96 and 40,443.39 is: 60,673.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,689.77 : 187,060.96 = 40,443.39 : x
  2. Step 2: Convert to fraction form
    124,689.77/187,060.96 = 40,443.39/x
  3. Step 3: Cross multiply
    124,689.77x = 187,060.96 × 40,443.39
  4. Step 4: Simplify right side
    124,689.77x = 7,565,379,257.95
  5. Step 5: Solve for x
    x = 7,565,379,257.95/124,689.77
  6. Step 6: Final answer
    x = 60,673.62

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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.