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Finding the Fourth Proportional to 79,321.92, 119,008.80 and 61,851.84

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Solution

The fourth proportional to 79,321.92, 119,008.80 and 61,851.84 is: 92,797.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,321.92 : 119,008.80 = 61,851.84 : x
  2. Step 2: Convert to fraction form
    79,321.92/119,008.80 = 61,851.84/x
  3. Step 3: Cross multiply
    79,321.92x = 119,008.80 × 61,851.84
  4. Step 4: Simplify right side
    79,321.92x = 7,360,913,256.19
  5. Step 5: Solve for x
    x = 7,360,913,256.19/79,321.92
  6. Step 6: Final answer
    x = 92,797.97

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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.