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Finding the Fourth Proportional to 250,510.25, 345,708.60 and 135,792.65

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Solution

The fourth proportional to 250,510.25, 345,708.60 and 135,792.65 is: 187,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,510.25 : 345,708.60 = 135,792.65 : x
  2. Step 2: Convert to fraction form
    250,510.25/345,708.60 = 135,792.65/x
  3. Step 3: Cross multiply
    250,510.25x = 345,708.60 × 135,792.65
  4. Step 4: Simplify right side
    250,510.25x = 46,944,686,921.79
  5. Step 5: Solve for x
    x = 46,944,686,921.79/250,510.25
  6. Step 6: Final answer
    x = 187,396.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.