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Finding the Fourth Proportional to 186,630.17, 279,958.91 and 79,910.03

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Solution

The fourth proportional to 186,630.17, 279,958.91 and 79,910.03 is: 119,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,630.17 : 279,958.91 = 79,910.03 : x
  2. Step 2: Convert to fraction form
    186,630.17/279,958.91 = 79,910.03/x
  3. Step 3: Cross multiply
    186,630.17x = 279,958.91 × 79,910.03
  4. Step 4: Simplify right side
    186,630.17x = 22,371,523,097.52
  5. Step 5: Solve for x
    x = 22,371,523,097.52/186,630.17
  6. Step 6: Final answer
    x = 119,870.89

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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.