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Finding the Fourth Proportional to 113,951.52, 157,211.28 and 71,494.56

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Solution

The fourth proportional to 113,951.52, 157,211.28 and 71,494.56 is: 98,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,951.52 : 157,211.28 = 71,494.56 : x
  2. Step 2: Convert to fraction form
    113,951.52/157,211.28 = 71,494.56/x
  3. Step 3: Cross multiply
    113,951.52x = 157,211.28 × 71,494.56
  4. Step 4: Simplify right side
    113,951.52x = 11,239,751,290.64
  5. Step 5: Solve for x
    x = 11,239,751,290.64/113,951.52
  6. Step 6: Final answer
    x = 98,636.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.