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Finding the Fourth Proportional to 269,697.30, 404,643.15 and 112,038.90

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Solution

The fourth proportional to 269,697.30, 404,643.15 and 112,038.90 is: 168,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,697.30 : 404,643.15 = 112,038.90 : x
  2. Step 2: Convert to fraction form
    269,697.30/404,643.15 = 112,038.90/x
  3. Step 3: Cross multiply
    269,697.30x = 404,643.15 × 112,038.90
  4. Step 4: Simplify right side
    269,697.30x = 45,335,773,418.54
  5. Step 5: Solve for x
    x = 45,335,773,418.54/269,697.30
  6. Step 6: Final answer
    x = 168,098.73

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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.