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Finding the Fourth Proportional to 319,903.88, 479,959.46 and 95,266.18

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Solution

The fourth proportional to 319,903.88, 479,959.46 and 95,266.18 is: 142,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,903.88 : 479,959.46 = 95,266.18 : x
  2. Step 2: Convert to fraction form
    319,903.88/479,959.46 = 95,266.18/x
  3. Step 3: Cross multiply
    319,903.88x = 479,959.46 × 95,266.18
  4. Step 4: Simplify right side
    319,903.88x = 45,723,901,432.93
  5. Step 5: Solve for x
    x = 45,723,901,432.93/319,903.88
  6. Step 6: Final answer
    x = 142,930.12

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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.