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Finding the Fourth Proportional to 186,877.82, 280,353.72 and 68,550.19

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Solution

The fourth proportional to 186,877.82, 280,353.72 and 68,550.19 is: 102,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,877.82 : 280,353.72 = 68,550.19 : x
  2. Step 2: Convert to fraction form
    186,877.82/280,353.72 = 68,550.19/x
  3. Step 3: Cross multiply
    186,877.82x = 280,353.72 × 68,550.19
  4. Step 4: Simplify right side
    186,877.82x = 19,218,300,773.21
  5. Step 5: Solve for x
    x = 19,218,300,773.21/186,877.82
  6. Step 6: Final answer
    x = 102,838.85

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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.