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Finding the Fourth Proportional to 225,145.80, 337,848.30 and 84,918.60

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Solution

The fourth proportional to 225,145.80, 337,848.30 and 84,918.60 is: 127,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,145.80 : 337,848.30 = 84,918.60 : x
  2. Step 2: Convert to fraction form
    225,145.80/337,848.30 = 84,918.60/x
  3. Step 3: Cross multiply
    225,145.80x = 337,848.30 × 84,918.60
  4. Step 4: Simplify right side
    225,145.80x = 28,689,604,648.38
  5. Step 5: Solve for x
    x = 28,689,604,648.38/225,145.80
  6. Step 6: Final answer
    x = 127,426.78

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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.