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Finding the Fourth Proportional to 124,213.65, 186,294.34 and 39,981.34

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Solution

The fourth proportional to 124,213.65, 186,294.34 and 39,981.34 is: 59,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,213.65 : 186,294.34 = 39,981.34 : x
  2. Step 2: Convert to fraction form
    124,213.65/186,294.34 = 39,981.34/x
  3. Step 3: Cross multiply
    124,213.65x = 186,294.34 × 39,981.34
  4. Step 4: Simplify right side
    124,213.65x = 7,448,297,347.62
  5. Step 5: Solve for x
    x = 7,448,297,347.62/124,213.65
  6. Step 6: Final answer
    x = 59,963.60

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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.