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Finding the Fourth Proportional to 157,306.60, 235,959.90 and 113,347.90

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Solution

The fourth proportional to 157,306.60, 235,959.90 and 113,347.90 is: 170,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,306.60 : 235,959.90 = 113,347.90 : x
  2. Step 2: Convert to fraction form
    157,306.60/235,959.90 = 113,347.90/x
  3. Step 3: Cross multiply
    157,306.60x = 235,959.90 × 113,347.90
  4. Step 4: Simplify right side
    157,306.60x = 26,745,559,149.21
  5. Step 5: Solve for x
    x = 26,745,559,149.21/157,306.60
  6. Step 6: Final answer
    x = 170,021.85

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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.