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Finding the Fourth Proportional to 73,480.80, 110,026.80 and 57,799.20

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Solution

The fourth proportional to 73,480.80, 110,026.80 and 57,799.20 is: 86,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,480.80 : 110,026.80 = 57,799.20 : x
  2. Step 2: Convert to fraction form
    73,480.80/110,026.80 = 57,799.20/x
  3. Step 3: Cross multiply
    73,480.80x = 110,026.80 × 57,799.20
  4. Step 4: Simplify right side
    73,480.80x = 6,359,461,018.56
  5. Step 5: Solve for x
    x = 6,359,461,018.56/73,480.80
  6. Step 6: Final answer
    x = 86,545.89

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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.