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Finding the Fourth Proportional to 187,699.57, 281,576.79 and 54,562.52

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Solution

The fourth proportional to 187,699.57, 281,576.79 and 54,562.52 is: 81,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,699.57 : 281,576.79 = 54,562.52 : x
  2. Step 2: Convert to fraction form
    187,699.57/281,576.79 = 54,562.52/x
  3. Step 3: Cross multiply
    187,699.57x = 281,576.79 × 54,562.52
  4. Step 4: Simplify right side
    187,699.57x = 15,363,539,235.91
  5. Step 5: Solve for x
    x = 15,363,539,235.91/187,699.57
  6. Step 6: Final answer
    x = 81,851.76

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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.