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Finding the Fourth Proportional to 275,251.86, 379,850.76 and 152,746.80

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Solution

The fourth proportional to 275,251.86, 379,850.76 and 152,746.80 is: 210,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,251.86 : 379,850.76 = 152,746.80 : x
  2. Step 2: Convert to fraction form
    275,251.86/379,850.76 = 152,746.80/x
  3. Step 3: Cross multiply
    275,251.86x = 379,850.76 × 152,746.80
  4. Step 4: Simplify right side
    275,251.86x = 58,020,988,067.57
  5. Step 5: Solve for x
    x = 58,020,988,067.57/275,251.86
  6. Step 6: Final answer
    x = 210,792.36

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1.5x scale

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.