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Finding the Fourth Proportional to 57,343.71, 79,133.04 and 31,848.65

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Solution

The fourth proportional to 57,343.71, 79,133.04 and 31,848.65 is: 43,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,343.71 : 79,133.04 = 31,848.65 : x
  2. Step 2: Convert to fraction form
    57,343.71/79,133.04 = 31,848.65/x
  3. Step 3: Cross multiply
    57,343.71x = 79,133.04 × 31,848.65
  4. Step 4: Simplify right side
    57,343.71x = 2,520,280,098.73
  5. Step 5: Solve for x
    x = 2,520,280,098.73/57,343.71
  6. Step 6: Final answer
    x = 43,950.42

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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.