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Finding the Fourth Proportional to 349,112.91, 523,710.39 and 124,505.28

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Solution

The fourth proportional to 349,112.91, 523,710.39 and 124,505.28 is: 186,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,112.91 : 523,710.39 = 124,505.28 : x
  2. Step 2: Convert to fraction form
    349,112.91/523,710.39 = 124,505.28/x
  3. Step 3: Cross multiply
    349,112.91x = 523,710.39 × 124,505.28
  4. Step 4: Simplify right side
    349,112.91x = 65,204,708,745.86
  5. Step 5: Solve for x
    x = 65,204,708,745.86/349,112.91
  6. Step 6: Final answer
    x = 186,772.55

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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.