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Finding the Fourth Proportional to 242,388.95, 363,353.39 and 84,575.03

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Solution

The fourth proportional to 242,388.95, 363,353.39 and 84,575.03 is: 126,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,388.95 : 363,353.39 = 84,575.03 : x
  2. Step 2: Convert to fraction form
    242,388.95/363,353.39 = 84,575.03/x
  3. Step 3: Cross multiply
    242,388.95x = 363,353.39 × 84,575.03
  4. Step 4: Simplify right side
    242,388.95x = 30,730,623,436.98
  5. Step 5: Solve for x
    x = 30,730,623,436.98/242,388.95
  6. Step 6: Final answer
    x = 126,782.28

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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.