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Finding the Fourth Proportional to 103,246.70, 154,926.45 and 40,069.31

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Solution

The fourth proportional to 103,246.70, 154,926.45 and 40,069.31 is: 60,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,246.70 : 154,926.45 = 40,069.31 : x
  2. Step 2: Convert to fraction form
    103,246.70/154,926.45 = 40,069.31/x
  3. Step 3: Cross multiply
    103,246.70x = 154,926.45 × 40,069.31
  4. Step 4: Simplify right side
    103,246.70x = 6,207,795,177.62
  5. Step 5: Solve for x
    x = 6,207,795,177.62/103,246.70
  6. Step 6: Final answer
    x = 60,125.85

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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.