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Finding the Fourth Proportional to 353,008.16, 487,154.53 and 191,863.61

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Solution

The fourth proportional to 353,008.16, 487,154.53 and 191,863.61 is: 264,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,008.16 : 487,154.53 = 191,863.61 : x
  2. Step 2: Convert to fraction form
    353,008.16/487,154.53 = 191,863.61/x
  3. Step 3: Cross multiply
    353,008.16x = 487,154.53 × 191,863.61
  4. Step 4: Simplify right side
    353,008.16x = 93,467,226,753.65
  5. Step 5: Solve for x
    x = 93,467,226,753.65/353,008.16
  6. Step 6: Final answer
    x = 264,773.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.