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Finding the Fourth Proportional to 170,610.17, 255,916.28 and 75,818.07

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Solution

The fourth proportional to 170,610.17, 255,916.28 and 75,818.07 is: 113,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,610.17 : 255,916.28 = 75,818.07 : x
  2. Step 2: Convert to fraction form
    170,610.17/255,916.28 = 75,818.07/x
  3. Step 3: Cross multiply
    170,610.17x = 255,916.28 × 75,818.07
  4. Step 4: Simplify right side
    170,610.17x = 19,403,078,620.72
  5. Step 5: Solve for x
    x = 19,403,078,620.72/170,610.17
  6. Step 6: Final answer
    x = 113,727.56

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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.