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Finding the Fourth Proportional to 168,617.46, 253,050.84 and 79,871.10

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Solution

The fourth proportional to 168,617.46, 253,050.84 and 79,871.10 is: 119,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,617.46 : 253,050.84 = 79,871.10 : x
  2. Step 2: Convert to fraction form
    168,617.46/253,050.84 = 79,871.10/x
  3. Step 3: Cross multiply
    168,617.46x = 253,050.84 × 79,871.10
  4. Step 4: Simplify right side
    168,617.46x = 20,211,448,946.72
  5. Step 5: Solve for x
    x = 20,211,448,946.72/168,617.46
  6. Step 6: Final answer
    x = 119,865.69

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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.