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Finding the Fourth Proportional to 170,626.63, 255,939.90 and 91,632.19

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Solution

The fourth proportional to 170,626.63, 255,939.90 and 91,632.19 is: 137,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,626.63 : 255,939.90 = 91,632.19 : x
  2. Step 2: Convert to fraction form
    170,626.63/255,939.90 = 91,632.19/x
  3. Step 3: Cross multiply
    170,626.63x = 255,939.90 × 91,632.19
  4. Step 4: Simplify right side
    170,626.63x = 23,452,333,545.38
  5. Step 5: Solve for x
    x = 23,452,333,545.38/170,626.63
  6. Step 6: Final answer
    x = 137,448.26

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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.