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Finding the Fourth Proportional to 83,656.53, 125,374.10 and 61,365.56

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Solution

The fourth proportional to 83,656.53, 125,374.10 and 61,365.56 is: 91,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,656.53 : 125,374.10 = 61,365.56 : x
  2. Step 2: Convert to fraction form
    83,656.53/125,374.10 = 61,365.56/x
  3. Step 3: Cross multiply
    83,656.53x = 125,374.10 × 61,365.56
  4. Step 4: Simplify right side
    83,656.53x = 7,693,650,922.30
  5. Step 5: Solve for x
    x = 7,693,650,922.30/83,656.53
  6. Step 6: Final answer
    x = 91,967.13

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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.