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Finding the Fourth Proportional to 269,541.70, 404,312.55 and 92,005.90

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Solution

The fourth proportional to 269,541.70, 404,312.55 and 92,005.90 is: 138,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,541.70 : 404,312.55 = 92,005.90 : x
  2. Step 2: Convert to fraction form
    269,541.70/404,312.55 = 92,005.90/x
  3. Step 3: Cross multiply
    269,541.70x = 404,312.55 × 92,005.90
  4. Step 4: Simplify right side
    269,541.70x = 37,199,140,044.05
  5. Step 5: Solve for x
    x = 37,199,140,044.05/269,541.70
  6. Step 6: Final answer
    x = 138,008.85

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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.