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Finding the Fourth Proportional to 319,685.13, 479,527.56 and 95,044.59

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Solution

The fourth proportional to 319,685.13, 479,527.56 and 95,044.59 is: 142,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,685.13 : 479,527.56 = 95,044.59 : x
  2. Step 2: Convert to fraction form
    319,685.13/479,527.56 = 95,044.59/x
  3. Step 3: Cross multiply
    319,685.13x = 479,527.56 × 95,044.59
  4. Step 4: Simplify right side
    319,685.13x = 45,576,500,333.90
  5. Step 5: Solve for x
    x = 45,576,500,333.90/319,685.13
  6. Step 6: Final answer
    x = 142,566.84

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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.