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Finding the Fourth Proportional to 370,197.98, 555,182.13 and 133,509.90

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Solution

The fourth proportional to 370,197.98, 555,182.13 and 133,509.90 is: 200,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,197.98 : 555,182.13 = 133,509.90 : x
  2. Step 2: Convert to fraction form
    370,197.98/555,182.13 = 133,509.90/x
  3. Step 3: Cross multiply
    370,197.98x = 555,182.13 × 133,509.90
  4. Step 4: Simplify right side
    370,197.98x = 74,122,313,240.68
  5. Step 5: Solve for x
    x = 74,122,313,240.68/370,197.98
  6. Step 6: Final answer
    x = 200,223.44

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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.