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Finding the Fourth Proportional to 79,988.60, 119,995.86 and 33,244.04

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Solution

The fourth proportional to 79,988.60, 119,995.86 and 33,244.04 is: 49,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,988.60 : 119,995.86 = 33,244.04 : x
  2. Step 2: Convert to fraction form
    79,988.60/119,995.86 = 33,244.04/x
  3. Step 3: Cross multiply
    79,988.60x = 119,995.86 × 33,244.04
  4. Step 4: Simplify right side
    79,988.60x = 3,989,147,169.67
  5. Step 5: Solve for x
    x = 3,989,147,169.67/79,988.60
  6. Step 6: Final answer
    x = 49,871.45

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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.