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Finding the Fourth Proportional to 83,600.48, 115,368.72 and 45,876.80

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Solution

The fourth proportional to 83,600.48, 115,368.72 and 45,876.80 is: 63,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,600.48 : 115,368.72 = 45,876.80 : x
  2. Step 2: Convert to fraction form
    83,600.48/115,368.72 = 45,876.80/x
  3. Step 3: Cross multiply
    83,600.48x = 115,368.72 × 45,876.80
  4. Step 4: Simplify right side
    83,600.48x = 5,292,747,693.70
  5. Step 5: Solve for x
    x = 5,292,747,693.70/83,600.48
  6. Step 6: Final answer
    x = 63,310.02

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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.