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Finding the Fourth Proportional to 352,001.20, 527,807.40 and 141,401.20

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Solution

The fourth proportional to 352,001.20, 527,807.40 and 141,401.20 is: 212,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,001.20 : 527,807.40 = 141,401.20 : x
  2. Step 2: Convert to fraction form
    352,001.20/527,807.40 = 141,401.20/x
  3. Step 3: Cross multiply
    352,001.20x = 527,807.40 × 141,401.20
  4. Step 4: Simplify right side
    352,001.20x = 74,632,599,728.88
  5. Step 5: Solve for x
    x = 74,632,599,728.88/352,001.20
  6. Step 6: Final answer
    x = 212,023.71

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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.