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Finding the Fourth Proportional to 79,877.84, 119,835.54 and 23,718.42

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Solution

The fourth proportional to 79,877.84, 119,835.54 and 23,718.42 is: 35,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,877.84 : 119,835.54 = 23,718.42 : x
  2. Step 2: Convert to fraction form
    79,877.84/119,835.54 = 23,718.42/x
  3. Step 3: Cross multiply
    79,877.84x = 119,835.54 × 23,718.42
  4. Step 4: Simplify right side
    79,877.84x = 2,842,309,668.65
  5. Step 5: Solve for x
    x = 2,842,309,668.65/79,877.84
  6. Step 6: Final answer
    x = 35,583.21

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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.