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Finding the Fourth Proportional to 88,200, 121,723.68 and 48,463.68

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Solution

The fourth proportional to 88,200, 121,723.68 and 48,463.68 is: 66,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,200 : 121,723.68 = 48,463.68 : x
  2. Step 2: Convert to fraction form
    88,200/121,723.68 = 48,463.68/x
  3. Step 3: Cross multiply
    88,200x = 121,723.68 × 48,463.68
  4. Step 4: Simplify right side
    88,200x = 5,899,177,475.94
  5. Step 5: Solve for x
    x = 5,899,177,475.94/88,200
  6. Step 6: Final answer
    x = 66,884.10

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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.