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Finding the Fourth Proportional to 370,512.30, 555,768.45 and 133,862.70

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Solution

The fourth proportional to 370,512.30, 555,768.45 and 133,862.70 is: 200,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,512.30 : 555,768.45 = 133,862.70 : x
  2. Step 2: Convert to fraction form
    370,512.30/555,768.45 = 133,862.70/x
  3. Step 3: Cross multiply
    370,512.30x = 555,768.45 × 133,862.70
  4. Step 4: Simplify right side
    370,512.30x = 74,396,665,291.82
  5. Step 5: Solve for x
    x = 74,396,665,291.82/370,512.30
  6. Step 6: Final answer
    x = 200,794.05

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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.