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Finding the Fourth Proportional to 129,137.69, 193,701.17 and 44,916.93

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Solution

The fourth proportional to 129,137.69, 193,701.17 and 44,916.93 is: 67,373.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,137.69 : 193,701.17 = 44,916.93 : x
  2. Step 2: Convert to fraction form
    129,137.69/193,701.17 = 44,916.93/x
  3. Step 3: Cross multiply
    129,137.69x = 193,701.17 × 44,916.93
  4. Step 4: Simplify right side
    129,137.69x = 8,700,462,006.10
  5. Step 5: Solve for x
    x = 8,700,462,006.10/129,137.69
  6. Step 6: Final answer
    x = 67,373.53

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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.