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Finding the Fourth Proportional to 124,855.61, 187,302.09 and 45,963.86

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Solution

The fourth proportional to 124,855.61, 187,302.09 and 45,963.86 is: 68,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.61 : 187,302.09 = 45,963.86 : x
  2. Step 2: Convert to fraction form
    124,855.61/187,302.09 = 45,963.86/x
  3. Step 3: Cross multiply
    124,855.61x = 187,302.09 × 45,963.86
  4. Step 4: Simplify right side
    124,855.61x = 8,609,127,042.47
  5. Step 5: Solve for x
    x = 8,609,127,042.47/124,855.61
  6. Step 6: Final answer
    x = 68,952.66

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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.