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Finding the Fourth Proportional to 186,751.61, 279,983.89 and 96,697.80

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Solution

The fourth proportional to 186,751.61, 279,983.89 and 96,697.80 is: 144,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,751.61 : 279,983.89 = 96,697.80 : x
  2. Step 2: Convert to fraction form
    186,751.61/279,983.89 = 96,697.80/x
  3. Step 3: Cross multiply
    186,751.61x = 279,983.89 × 96,697.80
  4. Step 4: Simplify right side
    186,751.61x = 27,073,826,319.31
  5. Step 5: Solve for x
    x = 27,073,826,319.31/186,751.61
  6. Step 6: Final answer
    x = 144,972.39

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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.