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Finding the Fourth Proportional to 186,121.51, 279,046.14 and 59,689.78

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Solution

The fourth proportional to 186,121.51, 279,046.14 and 59,689.78 is: 89,491.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,121.51 : 279,046.14 = 59,689.78 : x
  2. Step 2: Convert to fraction form
    186,121.51/279,046.14 = 59,689.78/x
  3. Step 3: Cross multiply
    186,121.51x = 279,046.14 × 59,689.78
  4. Step 4: Simplify right side
    186,121.51x = 16,656,202,706.45
  5. Step 5: Solve for x
    x = 16,656,202,706.45/186,121.51
  6. Step 6: Final answer
    x = 89,491.01

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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.