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Finding the Fourth Proportional to 125,346.84, 187,973.76 and 87,887.76

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Solution

The fourth proportional to 125,346.84, 187,973.76 and 87,887.76 is: 131,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,346.84 : 187,973.76 = 87,887.76 : x
  2. Step 2: Convert to fraction form
    125,346.84/187,973.76 = 87,887.76/x
  3. Step 3: Cross multiply
    125,346.84x = 187,973.76 × 87,887.76
  4. Step 4: Simplify right side
    125,346.84x = 16,520,592,705.18
  5. Step 5: Solve for x
    x = 16,520,592,705.18/125,346.84
  6. Step 6: Final answer
    x = 131,799.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.