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Finding the Fourth Proportional to 113,311.90, 170,098.80 and 60,823.90

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Solution

The fourth proportional to 113,311.90, 170,098.80 and 60,823.90 is: 91,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,311.90 : 170,098.80 = 60,823.90 : x
  2. Step 2: Convert to fraction form
    113,311.90/170,098.80 = 60,823.90/x
  3. Step 3: Cross multiply
    113,311.90x = 170,098.80 × 60,823.90
  4. Step 4: Simplify right side
    113,311.90x = 10,346,072,401.32
  5. Step 5: Solve for x
    x = 10,346,072,401.32/113,311.90
  6. Step 6: Final answer
    x = 91,306.14

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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.