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Finding the Fourth Proportional to 172,961.40, 259,442.10 and 94,229.40

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Solution

The fourth proportional to 172,961.40, 259,442.10 and 94,229.40 is: 141,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,961.40 : 259,442.10 = 94,229.40 : x
  2. Step 2: Convert to fraction form
    172,961.40/259,442.10 = 94,229.40/x
  3. Step 3: Cross multiply
    172,961.40x = 259,442.10 × 94,229.40
  4. Step 4: Simplify right side
    172,961.40x = 24,447,073,417.74
  5. Step 5: Solve for x
    x = 24,447,073,417.74/172,961.40
  6. Step 6: Final answer
    x = 141,344.10

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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.