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Finding the Fourth Proportional to 274,148.80, 411,223.20 and 124,331.20

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Solution

The fourth proportional to 274,148.80, 411,223.20 and 124,331.20 is: 186,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,148.80 : 411,223.20 = 124,331.20 : x
  2. Step 2: Convert to fraction form
    274,148.80/411,223.20 = 124,331.20/x
  3. Step 3: Cross multiply
    274,148.80x = 411,223.20 × 124,331.20
  4. Step 4: Simplify right side
    274,148.80x = 51,127,873,923.84
  5. Step 5: Solve for x
    x = 51,127,873,923.84/274,148.80
  6. Step 6: Final answer
    x = 186,496.80

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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.