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Finding the Fourth Proportional to 319,568.61, 441,013.85 and 176,337.88

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Solution

The fourth proportional to 319,568.61, 441,013.85 and 176,337.88 is: 243,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,568.61 : 441,013.85 = 176,337.88 : x
  2. Step 2: Convert to fraction form
    319,568.61/441,013.85 = 176,337.88/x
  3. Step 3: Cross multiply
    319,568.61x = 441,013.85 × 176,337.88
  4. Step 4: Simplify right side
    319,568.61x = 77,767,446,036.68
  5. Step 5: Solve for x
    x = 77,767,446,036.68/319,568.61
  6. Step 6: Final answer
    x = 243,351.33

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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.