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Finding the Fourth Proportional to 125,262.59, 172,862.10 and 68,673.96

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Solution

The fourth proportional to 125,262.59, 172,862.10 and 68,673.96 is: 94,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,262.59 : 172,862.10 = 68,673.96 : x
  2. Step 2: Convert to fraction form
    125,262.59/172,862.10 = 68,673.96/x
  3. Step 3: Cross multiply
    125,262.59x = 172,862.10 × 68,673.96
  4. Step 4: Simplify right side
    125,262.59x = 11,871,124,940.92
  5. Step 5: Solve for x
    x = 11,871,124,940.92/125,262.59
  6. Step 6: Final answer
    x = 94,769.92

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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.