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Finding the Fourth Proportional to 172,463.76, 258,630.96 and 60,115.08

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Solution

The fourth proportional to 172,463.76, 258,630.96 and 60,115.08 is: 90,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,463.76 : 258,630.96 = 60,115.08 : x
  2. Step 2: Convert to fraction form
    172,463.76/258,630.96 = 60,115.08/x
  3. Step 3: Cross multiply
    172,463.76x = 258,630.96 × 60,115.08
  4. Step 4: Simplify right side
    172,463.76x = 15,547,620,850.88
  5. Step 5: Solve for x
    x = 15,547,620,850.88/172,463.76
  6. Step 6: Final answer
    x = 90,150.07

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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.