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Finding the Fourth Proportional to 156,618.40, 216,170.46 and 92,992.90

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Solution

The fourth proportional to 156,618.40, 216,170.46 and 92,992.90 is: 128,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.40 : 216,170.46 = 92,992.90 : x
  2. Step 2: Convert to fraction form
    156,618.40/216,170.46 = 92,992.90/x
  3. Step 3: Cross multiply
    156,618.40x = 216,170.46 × 92,992.90
  4. Step 4: Simplify right side
    156,618.40x = 20,102,317,969.73
  5. Step 5: Solve for x
    x = 20,102,317,969.73/156,618.40
  6. Step 6: Final answer
    x = 128,352.21

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1.5x scale

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.