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Finding the Fourth Proportional to 242,649.61, 363,961.06 and 74,169.83

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Solution

The fourth proportional to 242,649.61, 363,961.06 and 74,169.83 is: 111,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,649.61 : 363,961.06 = 74,169.83 : x
  2. Step 2: Convert to fraction form
    242,649.61/363,961.06 = 74,169.83/x
  3. Step 3: Cross multiply
    242,649.61x = 363,961.06 × 74,169.83
  4. Step 4: Simplify right side
    242,649.61x = 26,994,930,671.30
  5. Step 5: Solve for x
    x = 26,994,930,671.30/242,649.61
  6. Step 6: Final answer
    x = 111,250.67

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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.