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Finding the Fourth Proportional to 124,194.32, 186,234.30 and 39,938.90

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Solution

The fourth proportional to 124,194.32, 186,234.30 and 39,938.90 is: 59,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,194.32 : 186,234.30 = 39,938.90 : x
  2. Step 2: Convert to fraction form
    124,194.32/186,234.30 = 39,938.90/x
  3. Step 3: Cross multiply
    124,194.32x = 186,234.30 × 39,938.90
  4. Step 4: Simplify right side
    124,194.32x = 7,437,993,084.27
  5. Step 5: Solve for x
    x = 7,437,993,084.27/124,194.32
  6. Step 6: Final answer
    x = 59,889.96

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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.