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Finding the Fourth Proportional to 319,500.78, 440,911.04 and 176,260.82

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Solution

The fourth proportional to 319,500.78, 440,911.04 and 176,260.82 is: 243,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,500.78 : 440,911.04 = 176,260.82 : x
  2. Step 2: Convert to fraction form
    319,500.78/440,911.04 = 176,260.82/x
  3. Step 3: Cross multiply
    319,500.78x = 440,911.04 × 176,260.82
  4. Step 4: Simplify right side
    319,500.78x = 77,715,338,371.59
  5. Step 5: Solve for x
    x = 77,715,338,371.59/319,500.78
  6. Step 6: Final answer
    x = 243,239.90

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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.