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Finding the Fourth Proportional to 269,411.70, 404,117.55 and 92,118.90

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Solution

The fourth proportional to 269,411.70, 404,117.55 and 92,118.90 is: 138,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,411.70 : 404,117.55 = 92,118.90 : x
  2. Step 2: Convert to fraction form
    269,411.70/404,117.55 = 92,118.90/x
  3. Step 3: Cross multiply
    269,411.70x = 404,117.55 × 92,118.90
  4. Step 4: Simplify right side
    269,411.70x = 37,226,864,176.70
  5. Step 5: Solve for x
    x = 37,226,864,176.70/269,411.70
  6. Step 6: Final answer
    x = 138,178.35

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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.