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Finding the Fourth Proportional to 112,773.75, 169,107.65 and 65,402.30

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Solution

The fourth proportional to 112,773.75, 169,107.65 and 65,402.30 is: 98,072.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,773.75 : 169,107.65 = 65,402.30 : x
  2. Step 2: Convert to fraction form
    112,773.75/169,107.65 = 65,402.30/x
  3. Step 3: Cross multiply
    112,773.75x = 169,107.65 × 65,402.30
  4. Step 4: Simplify right side
    112,773.75x = 11,060,028,930.58
  5. Step 5: Solve for x
    x = 11,060,028,930.58/112,773.75
  6. Step 6: Final answer
    x = 98,072.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.