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Finding the Fourth Proportional to 331,565.72, 496,932.39 and 141,802.88

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Solution

The fourth proportional to 331,565.72, 496,932.39 and 141,802.88 is: 212,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,565.72 : 496,932.39 = 141,802.88 : x
  2. Step 2: Convert to fraction form
    331,565.72/496,932.39 = 141,802.88/x
  3. Step 3: Cross multiply
    331,565.72x = 496,932.39 × 141,802.88
  4. Step 4: Simplify right side
    331,565.72x = 70,466,441,582.62
  5. Step 5: Solve for x
    x = 70,466,441,582.62/331,565.72
  6. Step 6: Final answer
    x = 212,526.32

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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.