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Finding the Fourth Proportional to 83,791.60, 115,586.58 and 53,108.44

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Solution

The fourth proportional to 83,791.60, 115,586.58 and 53,108.44 is: 73,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,791.60 : 115,586.58 = 53,108.44 : x
  2. Step 2: Convert to fraction form
    83,791.60/115,586.58 = 53,108.44/x
  3. Step 3: Cross multiply
    83,791.60x = 115,586.58 × 53,108.44
  4. Step 4: Simplify right side
    83,791.60x = 6,138,622,948.74
  5. Step 5: Solve for x
    x = 6,138,622,948.74/83,791.60
  6. Step 6: Final answer
    x = 73,260.60

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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.