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Finding the Fourth Proportional to 124,019.60, 185,640.60 and 89,027.60

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Solution

The fourth proportional to 124,019.60, 185,640.60 and 89,027.60 is: 133,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,019.60 : 185,640.60 = 89,027.60 : x
  2. Step 2: Convert to fraction form
    124,019.60/185,640.60 = 89,027.60/x
  3. Step 3: Cross multiply
    124,019.60x = 185,640.60 × 89,027.60
  4. Step 4: Simplify right side
    124,019.60x = 16,527,137,080.56
  5. Step 5: Solve for x
    x = 16,527,137,080.56/124,019.60
  6. Step 6: Final answer
    x = 133,262.30

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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.