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Finding the Fourth Proportional to 113,008, 169,512.02 and 88,066.72

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Solution

The fourth proportional to 113,008, 169,512.02 and 88,066.72 is: 132,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,008 : 169,512.02 = 88,066.72 : x
  2. Step 2: Convert to fraction form
    113,008/169,512.02 = 88,066.72/x
  3. Step 3: Cross multiply
    113,008x = 169,512.02 × 88,066.72
  4. Step 4: Simplify right side
    113,008x = 14,928,367,601.97
  5. Step 5: Solve for x
    x = 14,928,367,601.97/113,008
  6. Step 6: Final answer
    x = 132,100.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.