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Finding the Fourth Proportional to 187,449.46, 281,175.27 and 76,641.46

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Solution

The fourth proportional to 187,449.46, 281,175.27 and 76,641.46 is: 114,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,449.46 : 281,175.27 = 76,641.46 : x
  2. Step 2: Convert to fraction form
    187,449.46/281,175.27 = 76,641.46/x
  3. Step 3: Cross multiply
    187,449.46x = 281,175.27 × 76,641.46
  4. Step 4: Simplify right side
    187,449.46x = 21,549,683,208.69
  5. Step 5: Solve for x
    x = 21,549,683,208.69/187,449.46
  6. Step 6: Final answer
    x = 114,962.63

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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.