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Finding the Fourth Proportional to 170,569.72, 255,855.90 and 65,363.56

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Solution

The fourth proportional to 170,569.72, 255,855.90 and 65,363.56 is: 98,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,569.72 : 255,855.90 = 65,363.56 : x
  2. Step 2: Convert to fraction form
    170,569.72/255,855.90 = 65,363.56/x
  3. Step 3: Cross multiply
    170,569.72x = 255,855.90 × 65,363.56
  4. Step 4: Simplify right side
    170,569.72x = 16,723,652,471.00
  5. Step 5: Solve for x
    x = 16,723,652,471.00/170,569.72
  6. Step 6: Final answer
    x = 98,045.85

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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.