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Finding the Fourth Proportional to 170,456.25, 255,721.29 and 65,275.23

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Solution

The fourth proportional to 170,456.25, 255,721.29 and 65,275.23 is: 97,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,456.25 : 255,721.29 = 65,275.23 : x
  2. Step 2: Convert to fraction form
    170,456.25/255,721.29 = 65,275.23/x
  3. Step 3: Cross multiply
    170,456.25x = 255,721.29 × 65,275.23
  4. Step 4: Simplify right side
    170,456.25x = 16,692,266,020.65
  5. Step 5: Solve for x
    x = 16,692,266,020.65/170,456.25
  6. Step 6: Final answer
    x = 97,926.98

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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.