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Finding the Fourth Proportional to 186,097.76, 278,924.26 and 67,630.40

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Solution

The fourth proportional to 186,097.76, 278,924.26 and 67,630.40 is: 101,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,097.76 : 278,924.26 = 67,630.40 : x
  2. Step 2: Convert to fraction form
    186,097.76/278,924.26 = 67,630.40/x
  3. Step 3: Cross multiply
    186,097.76x = 278,924.26 × 67,630.40
  4. Step 4: Simplify right side
    186,097.76x = 18,863,759,273.50
  5. Step 5: Solve for x
    x = 18,863,759,273.50/186,097.76
  6. Step 6: Final answer
    x = 101,364.78

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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.