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Finding the Fourth Proportional to 168,057.60, 252,037.80 and 61,429.20

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Solution

The fourth proportional to 168,057.60, 252,037.80 and 61,429.20 is: 92,126.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.60 : 252,037.80 = 61,429.20 : x
  2. Step 2: Convert to fraction form
    168,057.60/252,037.80 = 61,429.20/x
  3. Step 3: Cross multiply
    168,057.60x = 252,037.80 × 61,429.20
  4. Step 4: Simplify right side
    168,057.60x = 15,482,480,423.76
  5. Step 5: Solve for x
    x = 15,482,480,423.76/168,057.60
  6. Step 6: Final answer
    x = 92,126.04

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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.