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Finding the Fourth Proportional to 186,015.62, 278,972.73 and 51,047.69

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Solution

The fourth proportional to 186,015.62, 278,972.73 and 51,047.69 is: 76,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,015.62 : 278,972.73 = 51,047.69 : x
  2. Step 2: Convert to fraction form
    186,015.62/278,972.73 = 51,047.69/x
  3. Step 3: Cross multiply
    186,015.62x = 278,972.73 × 51,047.69
  4. Step 4: Simplify right side
    186,015.62x = 14,240,913,439.49
  5. Step 5: Solve for x
    x = 14,240,913,439.49/186,015.62
  6. Step 6: Final answer
    x = 76,557.62

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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.