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Finding the Fourth Proportional to 125,792.52, 173,618.49 and 72,113.58

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Solution

The fourth proportional to 125,792.52, 173,618.49 and 72,113.58 is: 99,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,792.52 : 173,618.49 = 72,113.58 : x
  2. Step 2: Convert to fraction form
    125,792.52/173,618.49 = 72,113.58/x
  3. Step 3: Cross multiply
    125,792.52x = 173,618.49 × 72,113.58
  4. Step 4: Simplify right side
    125,792.52x = 12,520,250,868.09
  5. Step 5: Solve for x
    x = 12,520,250,868.09/125,792.52
  6. Step 6: Final answer
    x = 99,530.96

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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.