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Finding the Fourth Proportional to 172,972.08, 238,701.08 and 97,520.04

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Solution

The fourth proportional to 172,972.08, 238,701.08 and 97,520.04 is: 134,577.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,972.08 : 238,701.08 = 97,520.04 : x
  2. Step 2: Convert to fraction form
    172,972.08/238,701.08 = 97,520.04/x
  3. Step 3: Cross multiply
    172,972.08x = 238,701.08 × 97,520.04
  4. Step 4: Simplify right side
    172,972.08x = 23,278,138,382.04
  5. Step 5: Solve for x
    x = 23,278,138,382.04/172,972.08
  6. Step 6: Final answer
    x = 134,577.43

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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.