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Finding the Fourth Proportional to 168,176.64, 252,264.24 and 55,865.28

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Solution

The fourth proportional to 168,176.64, 252,264.24 and 55,865.28 is: 83,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,176.64 : 252,264.24 = 55,865.28 : x
  2. Step 2: Convert to fraction form
    168,176.64/252,264.24 = 55,865.28/x
  3. Step 3: Cross multiply
    168,176.64x = 252,264.24 × 55,865.28
  4. Step 4: Simplify right side
    168,176.64x = 14,092,812,401.59
  5. Step 5: Solve for x
    x = 14,092,812,401.59/168,176.64
  6. Step 6: Final answer
    x = 83,797.68

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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.