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Finding the Fourth Proportional to 83,091.60, 114,670.80 and 45,366

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Solution

The fourth proportional to 83,091.60, 114,670.80 and 45,366 is: 62,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,091.60 : 114,670.80 = 45,366 : x
  2. Step 2: Convert to fraction form
    83,091.60/114,670.80 = 45,366/x
  3. Step 3: Cross multiply
    83,091.60x = 114,670.80 × 45,366
  4. Step 4: Simplify right side
    83,091.60x = 5,202,155,512.80
  5. Step 5: Solve for x
    x = 5,202,155,512.80/83,091.60
  6. Step 6: Final answer
    x = 62,607.48

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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.