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Finding the Fourth Proportional to 84,693.38, 127,081.53 and 59,892.80

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Solution

The fourth proportional to 84,693.38, 127,081.53 and 59,892.80 is: 89,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,693.38 : 127,081.53 = 59,892.80 : x
  2. Step 2: Convert to fraction form
    84,693.38/127,081.53 = 59,892.80/x
  3. Step 3: Cross multiply
    84,693.38x = 127,081.53 × 59,892.80
  4. Step 4: Simplify right side
    84,693.38x = 7,611,268,024.58
  5. Step 5: Solve for x
    x = 7,611,268,024.58/84,693.38
  6. Step 6: Final answer
    x = 89,868.52

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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.