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Finding the Fourth Proportional to 112,750.92, 155,624.24 and 65,032.92

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Solution

The fourth proportional to 112,750.92, 155,624.24 and 65,032.92 is: 89,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,750.92 : 155,624.24 = 65,032.92 : x
  2. Step 2: Convert to fraction form
    112,750.92/155,624.24 = 65,032.92/x
  3. Step 3: Cross multiply
    112,750.92x = 155,624.24 × 65,032.92
  4. Step 4: Simplify right side
    112,750.92x = 10,120,698,749.98
  5. Step 5: Solve for x
    x = 10,120,698,749.98/112,750.92
  6. Step 6: Final answer
    x = 89,761.56

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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.