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Finding the Fourth Proportional to 79,235.87, 118,881.14 and 49,618.42

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Solution

The fourth proportional to 79,235.87, 118,881.14 and 49,618.42 is: 74,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,235.87 : 118,881.14 = 49,618.42 : x
  2. Step 2: Convert to fraction form
    79,235.87/118,881.14 = 49,618.42/x
  3. Step 3: Cross multiply
    79,235.87x = 118,881.14 × 49,618.42
  4. Step 4: Simplify right side
    79,235.87x = 5,898,693,789.30
  5. Step 5: Solve for x
    x = 5,898,693,789.30/79,235.87
  6. Step 6: Final answer
    x = 74,444.75

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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.