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Finding the Fourth Proportional to 92,714.48, 138,822.61 and 76,273.03

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Solution

The fourth proportional to 92,714.48, 138,822.61 and 76,273.03 is: 114,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,714.48 : 138,822.61 = 76,273.03 : x
  2. Step 2: Convert to fraction form
    92,714.48/138,822.61 = 76,273.03/x
  3. Step 3: Cross multiply
    92,714.48x = 138,822.61 × 76,273.03
  4. Step 4: Simplify right side
    92,714.48x = 10,588,420,442.19
  5. Step 5: Solve for x
    x = 10,588,420,442.19/92,714.48
  6. Step 6: Final answer
    x = 114,204.60

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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.