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Finding the Fourth Proportional to 187,170.75, 280,924.61 and 127,053.63

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Solution

The fourth proportional to 187,170.75, 280,924.61 and 127,053.63 is: 190,694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,170.75 : 280,924.61 = 127,053.63 : x
  2. Step 2: Convert to fraction form
    187,170.75/280,924.61 = 127,053.63/x
  3. Step 3: Cross multiply
    187,170.75x = 280,924.61 × 127,053.63
  4. Step 4: Simplify right side
    187,170.75x = 35,692,490,821.57
  5. Step 5: Solve for x
    x = 35,692,490,821.57/187,170.75
  6. Step 6: Final answer
    x = 190,694.81

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1.5x scale

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.