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Finding the Fourth Proportional to 79,451, 119,176.50 and 29,543.66

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Solution

The fourth proportional to 79,451, 119,176.50 and 29,543.66 is: 44,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451 : 119,176.50 = 29,543.66 : x
  2. Step 2: Convert to fraction form
    79,451/119,176.50 = 29,543.66/x
  3. Step 3: Cross multiply
    79,451x = 119,176.50 × 29,543.66
  4. Step 4: Simplify right side
    79,451x = 3,520,909,995.99
  5. Step 5: Solve for x
    x = 3,520,909,995.99/79,451
  6. Step 6: Final answer
    x = 44,315.49

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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.