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Finding the Fourth Proportional to 187,698.31, 281,574.92 and 54,561.26

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Solution

The fourth proportional to 187,698.31, 281,574.92 and 54,561.26 is: 81,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,698.31 : 281,574.92 = 54,561.26 : x
  2. Step 2: Convert to fraction form
    187,698.31/281,574.92 = 54,561.26/x
  3. Step 3: Cross multiply
    187,698.31x = 281,574.92 × 54,561.26
  4. Step 4: Simplify right side
    187,698.31x = 15,363,083,259.94
  5. Step 5: Solve for x
    x = 15,363,083,259.94/187,698.31
  6. Step 6: Final answer
    x = 81,849.88

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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.