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Finding the Fourth Proportional to 156,862.46, 216,478.46 and 88,892.62

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Solution

The fourth proportional to 156,862.46, 216,478.46 and 88,892.62 is: 122,676.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,862.46 : 216,478.46 = 88,892.62 : x
  2. Step 2: Convert to fraction form
    156,862.46/216,478.46 = 88,892.62/x
  3. Step 3: Cross multiply
    156,862.46x = 216,478.46 × 88,892.62
  4. Step 4: Simplify right side
    156,862.46x = 19,243,337,482.97
  5. Step 5: Solve for x
    x = 19,243,337,482.97/156,862.46
  6. Step 6: Final answer
    x = 122,676.50

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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.