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Finding the Fourth Proportional to 88,714.88, 122,426.78 and 48,428.68

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Solution

The fourth proportional to 88,714.88, 122,426.78 and 48,428.68 is: 66,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,714.88 : 122,426.78 = 48,428.68 : x
  2. Step 2: Convert to fraction form
    88,714.88/122,426.78 = 48,428.68/x
  3. Step 3: Cross multiply
    88,714.88x = 122,426.78 × 48,428.68
  4. Step 4: Simplify right side
    88,714.88x = 5,928,967,352.05
  5. Step 5: Solve for x
    x = 5,928,967,352.05/88,714.88
  6. Step 6: Final answer
    x = 66,831.71

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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.