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Finding the Fourth Proportional to 187,447.56, 281,174.58 and 69,057.96

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Solution

The fourth proportional to 187,447.56, 281,174.58 and 69,057.96 is: 103,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,447.56 : 281,174.58 = 69,057.96 : x
  2. Step 2: Convert to fraction form
    187,447.56/281,174.58 = 69,057.96/x
  3. Step 3: Cross multiply
    187,447.56x = 281,174.58 × 69,057.96
  4. Step 4: Simplify right side
    187,447.56x = 19,417,342,898.66
  5. Step 5: Solve for x
    x = 19,417,342,898.66/187,447.56
  6. Step 6: Final answer
    x = 103,588.13

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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.