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Finding the Fourth Proportional to 125,056.88, 172,578.96 and 68,473.52

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Solution

The fourth proportional to 125,056.88, 172,578.96 and 68,473.52 is: 94,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,056.88 : 172,578.96 = 68,473.52 : x
  2. Step 2: Convert to fraction form
    125,056.88/172,578.96 = 68,473.52/x
  3. Step 3: Cross multiply
    125,056.88x = 172,578.96 × 68,473.52
  4. Step 4: Simplify right side
    125,056.88x = 11,817,088,869.14
  5. Step 5: Solve for x
    x = 11,817,088,869.14/125,056.88
  6. Step 6: Final answer
    x = 94,493.71

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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.