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Finding the Fourth Proportional to 84,915.73, 117,060.20 and 59,342.70

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Solution

The fourth proportional to 84,915.73, 117,060.20 and 59,342.70 is: 81,806.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,915.73 : 117,060.20 = 59,342.70 : x
  2. Step 2: Convert to fraction form
    84,915.73/117,060.20 = 59,342.70/x
  3. Step 3: Cross multiply
    84,915.73x = 117,060.20 × 59,342.70
  4. Step 4: Simplify right side
    84,915.73x = 6,946,668,330.54
  5. Step 5: Solve for x
    x = 6,946,668,330.54/84,915.73
  6. Step 6: Final answer
    x = 81,806.61

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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.