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Finding the Fourth Proportional to 170,767.91, 256,164.15 and 65,586.87

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Solution

The fourth proportional to 170,767.91, 256,164.15 and 65,586.87 is: 98,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,767.91 : 256,164.15 = 65,586.87 : x
  2. Step 2: Convert to fraction form
    170,767.91/256,164.15 = 65,586.87/x
  3. Step 3: Cross multiply
    170,767.91x = 256,164.15 × 65,586.87
  4. Step 4: Simplify right side
    170,767.91x = 16,801,004,804.71
  5. Step 5: Solve for x
    x = 16,801,004,804.71/170,767.91
  6. Step 6: Final answer
    x = 98,385.03

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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.