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Finding the Fourth Proportional to 124,294.56, 186,440.76 and 74,388.48

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Solution

The fourth proportional to 124,294.56, 186,440.76 and 74,388.48 is: 111,582.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,294.56 : 186,440.76 = 74,388.48 : x
  2. Step 2: Convert to fraction form
    124,294.56/186,440.76 = 74,388.48/x
  3. Step 3: Cross multiply
    124,294.56x = 186,440.76 × 74,388.48
  4. Step 4: Simplify right side
    124,294.56x = 13,869,044,746.44
  5. Step 5: Solve for x
    x = 13,869,044,746.44/124,294.56
  6. Step 6: Final answer
    x = 111,582.07

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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.