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Finding the Fourth Proportional to 92,765.72, 139,159.52 and 29,563.85

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Solution

The fourth proportional to 92,765.72, 139,159.52 and 29,563.85 is: 44,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,765.72 : 139,159.52 = 29,563.85 : x
  2. Step 2: Convert to fraction form
    92,765.72/139,159.52 = 29,563.85/x
  3. Step 3: Cross multiply
    92,765.72x = 139,159.52 × 29,563.85
  4. Step 4: Simplify right side
    92,765.72x = 4,114,091,175.35
  5. Step 5: Solve for x
    x = 4,114,091,175.35/92,765.72
  6. Step 6: Final answer
    x = 44,349.26

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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.