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Finding the Fourth Proportional to 168,833.60, 253,288.80 and 98,676.80

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Solution

The fourth proportional to 168,833.60, 253,288.80 and 98,676.80 is: 148,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,833.60 : 253,288.80 = 98,676.80 : x
  2. Step 2: Convert to fraction form
    168,833.60/253,288.80 = 98,676.80/x
  3. Step 3: Cross multiply
    168,833.60x = 253,288.80 × 98,676.80
  4. Step 4: Simplify right side
    168,833.60x = 24,993,728,259.84
  5. Step 5: Solve for x
    x = 24,993,728,259.84/168,833.60
  6. Step 6: Final answer
    x = 148,037.64

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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.