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Finding the Fourth Proportional to 88,314.21, 121,873 and 48,027.86

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Solution

The fourth proportional to 88,314.21, 121,873 and 48,027.86 is: 66,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,314.21 : 121,873 = 48,027.86 : x
  2. Step 2: Convert to fraction form
    88,314.21/121,873 = 48,027.86/x
  3. Step 3: Cross multiply
    88,314.21x = 121,873 × 48,027.86
  4. Step 4: Simplify right side
    88,314.21x = 5,853,299,381.78
  5. Step 5: Solve for x
    x = 5,853,299,381.78/88,314.21
  6. Step 6: Final answer
    x = 66,278.12

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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.