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Finding the Fourth Proportional to 124,125.92, 186,186.36 and 30,632.48

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Solution

The fourth proportional to 124,125.92, 186,186.36 and 30,632.48 is: 45,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,125.92 : 186,186.36 = 30,632.48 : x
  2. Step 2: Convert to fraction form
    124,125.92/186,186.36 = 30,632.48/x
  3. Step 3: Cross multiply
    124,125.92x = 186,186.36 × 30,632.48
  4. Step 4: Simplify right side
    124,125.92x = 5,703,349,948.97
  5. Step 5: Solve for x
    x = 5,703,349,948.97/124,125.92
  6. Step 6: Final answer
    x = 45,948.10

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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.