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Finding the Fourth Proportional to 88,742.88, 122,470.16 and 48,460.39

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Solution

The fourth proportional to 88,742.88, 122,470.16 and 48,460.39 is: 66,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,742.88 : 122,470.16 = 48,460.39 : x
  2. Step 2: Convert to fraction form
    88,742.88/122,470.16 = 48,460.39/x
  3. Step 3: Cross multiply
    88,742.88x = 122,470.16 × 48,460.39
  4. Step 4: Simplify right side
    88,742.88x = 5,934,951,168.49
  5. Step 5: Solve for x
    x = 5,934,951,168.49/88,742.88
  6. Step 6: Final answer
    x = 66,878.05

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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.