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Finding the Fourth Proportional to 92,644.56, 138,897.72 and 43,385.04

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Solution

The fourth proportional to 92,644.56, 138,897.72 and 43,385.04 is: 65,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,644.56 : 138,897.72 = 43,385.04 : x
  2. Step 2: Convert to fraction form
    92,644.56/138,897.72 = 43,385.04/x
  3. Step 3: Cross multiply
    92,644.56x = 138,897.72 × 43,385.04
  4. Step 4: Simplify right side
    92,644.56x = 6,026,083,138.11
  5. Step 5: Solve for x
    x = 6,026,083,138.11/92,644.56
  6. Step 6: Final answer
    x = 65,045.19

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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.