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Finding the Fourth Proportional to 187,361.61, 281,134.68 and 87,528.84

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Solution

The fourth proportional to 187,361.61, 281,134.68 and 87,528.84 is: 131,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,361.61 : 281,134.68 = 87,528.84 : x
  2. Step 2: Convert to fraction form
    187,361.61/281,134.68 = 87,528.84/x
  3. Step 3: Cross multiply
    187,361.61x = 281,134.68 × 87,528.84
  4. Step 4: Simplify right side
    187,361.61x = 24,607,392,424.17
  5. Step 5: Solve for x
    x = 24,607,392,424.17/187,361.61
  6. Step 6: Final answer
    x = 131,336.36

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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.