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Finding the Fourth Proportional to 169,808.80, 254,985.20 and 135,037.60

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Solution

The fourth proportional to 169,808.80, 254,985.20 and 135,037.60 is: 202,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,808.80 : 254,985.20 = 135,037.60 : x
  2. Step 2: Convert to fraction form
    169,808.80/254,985.20 = 135,037.60/x
  3. Step 3: Cross multiply
    169,808.80x = 254,985.20 × 135,037.60
  4. Step 4: Simplify right side
    169,808.80x = 34,432,589,443.52
  5. Step 5: Solve for x
    x = 34,432,589,443.52/169,808.80
  6. Step 6: Final answer
    x = 202,772.70

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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.