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Finding the Fourth Proportional to 156,818.76, 216,394.26 and 88,822.16

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Solution

The fourth proportional to 156,818.76, 216,394.26 and 88,822.16 is: 122,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,818.76 : 216,394.26 = 88,822.16 : x
  2. Step 2: Convert to fraction form
    156,818.76/216,394.26 = 88,822.16/x
  3. Step 3: Cross multiply
    156,818.76x = 216,394.26 × 88,822.16
  4. Step 4: Simplify right side
    156,818.76x = 19,220,605,584.80
  5. Step 5: Solve for x
    x = 19,220,605,584.80/156,818.76
  6. Step 6: Final answer
    x = 122,565.73

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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.