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Finding the Fourth Proportional to 186,131.40, 279,174 and 59,761.68

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Solution

The fourth proportional to 186,131.40, 279,174 and 59,761.68 is: 89,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,131.40 : 279,174 = 59,761.68 : x
  2. Step 2: Convert to fraction form
    186,131.40/279,174 = 59,761.68/x
  3. Step 3: Cross multiply
    186,131.40x = 279,174 × 59,761.68
  4. Step 4: Simplify right side
    186,131.40x = 16,683,907,252.32
  5. Step 5: Solve for x
    x = 16,683,907,252.32/186,131.40
  6. Step 6: Final answer
    x = 89,635.10

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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.