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Finding the Fourth Proportional to 367,058.80, 550,424.17 and 142,344.55

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Solution

The fourth proportional to 367,058.80, 550,424.17 and 142,344.55 is: 213,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,058.80 : 550,424.17 = 142,344.55 : x
  2. Step 2: Convert to fraction form
    367,058.80/550,424.17 = 142,344.55/x
  3. Step 3: Cross multiply
    367,058.80x = 550,424.17 × 142,344.55
  4. Step 4: Simplify right side
    367,058.80x = 78,349,880,787.77
  5. Step 5: Solve for x
    x = 78,349,880,787.77/367,058.80
  6. Step 6: Final answer
    x = 213,453.21

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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.