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Finding the Fourth Proportional to 92,791.44, 139,119 and 29,575.20

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Solution

The fourth proportional to 92,791.44, 139,119 and 29,575.20 is: 44,341.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,791.44 : 139,119 = 29,575.20 : x
  2. Step 2: Convert to fraction form
    92,791.44/139,119 = 29,575.20/x
  3. Step 3: Cross multiply
    92,791.44x = 139,119 × 29,575.20
  4. Step 4: Simplify right side
    92,791.44x = 4,114,472,248.80
  5. Step 5: Solve for x
    x = 4,114,472,248.80/92,791.44
  6. Step 6: Final answer
    x = 44,341.08

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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.