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Finding the Fourth Proportional to 157,662.60, 236,493.90 and 137,387.40

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Solution

The fourth proportional to 157,662.60, 236,493.90 and 137,387.40 is: 206,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,662.60 : 236,493.90 = 137,387.40 : x
  2. Step 2: Convert to fraction form
    157,662.60/236,493.90 = 137,387.40/x
  3. Step 3: Cross multiply
    157,662.60x = 236,493.90 × 137,387.40
  4. Step 4: Simplify right side
    157,662.60x = 32,491,282,036.86
  5. Step 5: Solve for x
    x = 32,491,282,036.86/157,662.60
  6. Step 6: Final answer
    x = 206,081.10

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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.