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Finding the Fourth Proportional to 124,543.97, 171,874.47 and 70,836.72

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Solution

The fourth proportional to 124,543.97, 171,874.47 and 70,836.72 is: 97,756.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,543.97 : 171,874.47 = 70,836.72 : x
  2. Step 2: Convert to fraction form
    124,543.97/171,874.47 = 70,836.72/x
  3. Step 3: Cross multiply
    124,543.97x = 171,874.47 × 70,836.72
  4. Step 4: Simplify right side
    124,543.97x = 12,175,023,706.54
  5. Step 5: Solve for x
    x = 12,175,023,706.54/124,543.97
  6. Step 6: Final answer
    x = 97,756.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.