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Finding the Fourth Proportional to 124,809.56, 187,288.52 and 45,979.14

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Solution

The fourth proportional to 124,809.56, 187,288.52 and 45,979.14 is: 68,996.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.56 : 187,288.52 = 45,979.14 : x
  2. Step 2: Convert to fraction form
    124,809.56/187,288.52 = 45,979.14/x
  3. Step 3: Cross multiply
    124,809.56x = 187,288.52 × 45,979.14
  4. Step 4: Simplify right side
    124,809.56x = 8,611,365,081.47
  5. Step 5: Solve for x
    x = 8,611,365,081.47/124,809.56
  6. Step 6: Final answer
    x = 68,996.04

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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.