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Finding the Fourth Proportional to 392,295.49, 588,443.22 and 111,805.45

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Solution

The fourth proportional to 392,295.49, 588,443.22 and 111,805.45 is: 167,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,295.49 : 588,443.22 = 111,805.45 : x
  2. Step 2: Convert to fraction form
    392,295.49/588,443.22 = 111,805.45/x
  3. Step 3: Cross multiply
    392,295.49x = 588,443.22 × 111,805.45
  4. Step 4: Simplify right side
    392,295.49x = 65,791,159,011.55
  5. Step 5: Solve for x
    x = 65,791,159,011.55/392,295.49
  6. Step 6: Final answer
    x = 167,708.17

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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.