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Finding the Fourth Proportional to 125,471.43, 173,150.87 and 68,886.45

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Solution

The fourth proportional to 125,471.43, 173,150.87 and 68,886.45 is: 95,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,471.43 : 173,150.87 = 68,886.45 : x
  2. Step 2: Convert to fraction form
    125,471.43/173,150.87 = 68,886.45/x
  3. Step 3: Cross multiply
    125,471.43x = 173,150.87 × 68,886.45
  4. Step 4: Simplify right side
    125,471.43x = 11,927,748,404.28
  5. Step 5: Solve for x
    x = 11,927,748,404.28/125,471.43
  6. Step 6: Final answer
    x = 95,063.46

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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.