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Finding the Fourth Proportional to 157,727.60, 236,591.40 and 113,260.40

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Solution

The fourth proportional to 157,727.60, 236,591.40 and 113,260.40 is: 169,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,727.60 : 236,591.40 = 113,260.40 : x
  2. Step 2: Convert to fraction form
    157,727.60/236,591.40 = 113,260.40/x
  3. Step 3: Cross multiply
    157,727.60x = 236,591.40 × 113,260.40
  4. Step 4: Simplify right side
    157,727.60x = 26,796,436,600.56
  5. Step 5: Solve for x
    x = 26,796,436,600.56/157,727.60
  6. Step 6: Final answer
    x = 169,890.60

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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.