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Finding the Fourth Proportional to 125,260.70, 187,679.73 and 61,996.46

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Solution

The fourth proportional to 125,260.70, 187,679.73 and 61,996.46 is: 92,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,260.70 : 187,679.73 = 61,996.46 : x
  2. Step 2: Convert to fraction form
    125,260.70/187,679.73 = 61,996.46/x
  3. Step 3: Cross multiply
    125,260.70x = 187,679.73 × 61,996.46
  4. Step 4: Simplify right side
    125,260.70x = 11,635,478,873.76
  5. Step 5: Solve for x
    x = 11,635,478,873.76/125,260.70
  6. Step 6: Final answer
    x = 92,890.10

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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.