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Finding the Fourth Proportional to 172,580.70, 258,882.78 and 58,682.12

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Solution

The fourth proportional to 172,580.70, 258,882.78 and 58,682.12 is: 88,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,580.70 : 258,882.78 = 58,682.12 : x
  2. Step 2: Convert to fraction form
    172,580.70/258,882.78 = 58,682.12/x
  3. Step 3: Cross multiply
    172,580.70x = 258,882.78 × 58,682.12
  4. Step 4: Simplify right side
    172,580.70x = 15,191,788,774.07
  5. Step 5: Solve for x
    x = 15,191,788,774.07/172,580.70
  6. Step 6: Final answer
    x = 88,027.16

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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.