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Finding the Fourth Proportional to 112,351.60, 168,721.80 and 59,863.60

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Solution

The fourth proportional to 112,351.60, 168,721.80 and 59,863.60 is: 89,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,351.60 : 168,721.80 = 59,863.60 : x
  2. Step 2: Convert to fraction form
    112,351.60/168,721.80 = 59,863.60/x
  3. Step 3: Cross multiply
    112,351.60x = 168,721.80 × 59,863.60
  4. Step 4: Simplify right side
    112,351.60x = 10,100,294,346.48
  5. Step 5: Solve for x
    x = 10,100,294,346.48/112,351.60
  6. Step 6: Final answer
    x = 89,898.98

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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.