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Finding the Fourth Proportional to 112,773.96, 155,627.64 and 65,027.16

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Solution

The fourth proportional to 112,773.96, 155,627.64 and 65,027.16 is: 89,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,773.96 : 155,627.64 = 65,027.16 : x
  2. Step 2: Convert to fraction form
    112,773.96/155,627.64 = 65,027.16/x
  3. Step 3: Cross multiply
    112,773.96x = 155,627.64 × 65,027.16
  4. Step 4: Simplify right side
    112,773.96x = 10,120,023,446.70
  5. Step 5: Solve for x
    x = 10,120,023,446.70/112,773.96
  6. Step 6: Final answer
    x = 89,737.24

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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.