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Finding the Fourth Proportional to 316,251.92, 436,437.96 and 173,011.96

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Solution

The fourth proportional to 316,251.92, 436,437.96 and 173,011.96 is: 238,762.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,251.92 : 436,437.96 = 173,011.96 : x
  2. Step 2: Convert to fraction form
    316,251.92/436,437.96 = 173,011.96/x
  3. Step 3: Cross multiply
    316,251.92x = 436,437.96 × 173,011.96
  4. Step 4: Simplify right side
    316,251.92x = 75,508,986,878.00
  5. Step 5: Solve for x
    x = 75,508,986,878.00/316,251.92
  6. Step 6: Final answer
    x = 238,762.15

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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.