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Finding the Fourth Proportional to 122,568.66, 168,997.59 and 88,522.74

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Solution

The fourth proportional to 122,568.66, 168,997.59 and 88,522.74 is: 122,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,568.66 : 168,997.59 = 88,522.74 : x
  2. Step 2: Convert to fraction form
    122,568.66/168,997.59 = 88,522.74/x
  3. Step 3: Cross multiply
    122,568.66x = 168,997.59 × 88,522.74
  4. Step 4: Simplify right side
    122,568.66x = 14,960,129,720.20
  5. Step 5: Solve for x
    x = 14,960,129,720.20/122,568.66
  6. Step 6: Final answer
    x = 122,055.10

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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.