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Finding the Fourth Proportional to 156,883.46, 216,503.94 and 96,489.58

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Solution

The fourth proportional to 156,883.46, 216,503.94 and 96,489.58 is: 133,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,883.46 : 216,503.94 = 96,489.58 : x
  2. Step 2: Convert to fraction form
    156,883.46/216,503.94 = 96,489.58/x
  3. Step 3: Cross multiply
    156,883.46x = 216,503.94 × 96,489.58
  4. Step 4: Simplify right side
    156,883.46x = 20,890,374,238.95
  5. Step 5: Solve for x
    x = 20,890,374,238.95/156,883.46
  6. Step 6: Final answer
    x = 133,158.55

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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.