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Finding the Fourth Proportional to 88,311.57, 121,870.78 and 48,025.71

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Solution

The fourth proportional to 88,311.57, 121,870.78 and 48,025.71 is: 66,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,311.57 : 121,870.78 = 48,025.71 : x
  2. Step 2: Convert to fraction form
    88,311.57/121,870.78 = 48,025.71/x
  3. Step 3: Cross multiply
    88,311.57x = 121,870.78 × 48,025.71
  4. Step 4: Simplify right side
    88,311.57x = 5,852,930,617.69
  5. Step 5: Solve for x
    x = 5,852,930,617.69/88,311.57
  6. Step 6: Final answer
    x = 66,275.92

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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.