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Finding the Fourth Proportional to 125,167.92, 172,732.12 and 67,807.84

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Solution

The fourth proportional to 125,167.92, 172,732.12 and 67,807.84 is: 93,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,167.92 : 172,732.12 = 67,807.84 : x
  2. Step 2: Convert to fraction form
    125,167.92/172,732.12 = 67,807.84/x
  3. Step 3: Cross multiply
    125,167.92x = 172,732.12 × 67,807.84
  4. Step 4: Simplify right side
    125,167.92x = 11,712,591,955.82
  5. Step 5: Solve for x
    x = 11,712,591,955.82/125,167.92
  6. Step 6: Final answer
    x = 93,575.03

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1.5x scale

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.