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Finding the Fourth Proportional to 103,319.91, 154,979.87 and 33,248.43

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Solution

The fourth proportional to 103,319.91, 154,979.87 and 33,248.43 is: 49,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,319.91 : 154,979.87 = 33,248.43 : x
  2. Step 2: Convert to fraction form
    103,319.91/154,979.87 = 33,248.43/x
  3. Step 3: Cross multiply
    103,319.91x = 154,979.87 × 33,248.43
  4. Step 4: Simplify right side
    103,319.91x = 5,152,837,192.86
  5. Step 5: Solve for x
    x = 5,152,837,192.86/103,319.91
  6. Step 6: Final answer
    x = 49,872.65

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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.