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Finding the Fourth Proportional to 156,652.50, 216,180.45 and 89,584.50

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Solution

The fourth proportional to 156,652.50, 216,180.45 and 89,584.50 is: 123,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,652.50 : 216,180.45 = 89,584.50 : x
  2. Step 2: Convert to fraction form
    156,652.50/216,180.45 = 89,584.50/x
  3. Step 3: Cross multiply
    156,652.50x = 216,180.45 × 89,584.50
  4. Step 4: Simplify right side
    156,652.50x = 19,366,417,523.03
  5. Step 5: Solve for x
    x = 19,366,417,523.03/156,652.50
  6. Step 6: Final answer
    x = 123,626.61

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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.