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Finding the Fourth Proportional to 170,568.72, 255,854.40 and 65,362.56

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Solution

The fourth proportional to 170,568.72, 255,854.40 and 65,362.56 is: 98,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,568.72 : 255,854.40 = 65,362.56 : x
  2. Step 2: Convert to fraction form
    170,568.72/255,854.40 = 65,362.56/x
  3. Step 3: Cross multiply
    170,568.72x = 255,854.40 × 65,362.56
  4. Step 4: Simplify right side
    170,568.72x = 16,723,298,571.26
  5. Step 5: Solve for x
    x = 16,723,298,571.26/170,568.72
  6. Step 6: Final answer
    x = 98,044.35

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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.