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Finding the Fourth Proportional to 125,032.97, 172,544 and 67,670.92

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Solution

The fourth proportional to 125,032.97, 172,544 and 67,670.92 is: 93,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,032.97 : 172,544 = 67,670.92 : x
  2. Step 2: Convert to fraction form
    125,032.97/172,544 = 67,670.92/x
  3. Step 3: Cross multiply
    125,032.97x = 172,544 × 67,670.92
  4. Step 4: Simplify right side
    125,032.97x = 11,676,211,220.48
  5. Step 5: Solve for x
    x = 11,676,211,220.48/125,032.97
  6. Step 6: Final answer
    x = 93,385.06

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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.