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Finding the Fourth Proportional to 186,279.60, 279,424.20 and 68,039.04

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Solution

The fourth proportional to 186,279.60, 279,424.20 and 68,039.04 is: 102,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,279.60 : 279,424.20 = 68,039.04 : x
  2. Step 2: Convert to fraction form
    186,279.60/279,424.20 = 68,039.04/x
  3. Step 3: Cross multiply
    186,279.60x = 279,424.20 × 68,039.04
  4. Step 4: Simplify right side
    186,279.60x = 19,011,754,320.77
  5. Step 5: Solve for x
    x = 19,011,754,320.77/186,279.60
  6. Step 6: Final answer
    x = 102,060.31

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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.