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Finding the Fourth Proportional to 187,359.68, 281,039.88 and 76,551.68

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Solution

The fourth proportional to 187,359.68, 281,039.88 and 76,551.68 is: 114,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,359.68 : 281,039.88 = 76,551.68 : x
  2. Step 2: Convert to fraction form
    187,359.68/281,039.88 = 76,551.68/x
  3. Step 3: Cross multiply
    187,359.68x = 281,039.88 × 76,551.68
  4. Step 4: Simplify right side
    187,359.68x = 21,514,074,961.00
  5. Step 5: Solve for x
    x = 21,514,074,961.00/187,359.68
  6. Step 6: Final answer
    x = 114,827.67

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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.