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Finding the Fourth Proportional to 186,368.50, 279,596.49 and 61,709.50

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Solution

The fourth proportional to 186,368.50, 279,596.49 and 61,709.50 is: 92,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,368.50 : 279,596.49 = 61,709.50 : x
  2. Step 2: Convert to fraction form
    186,368.50/279,596.49 = 61,709.50/x
  3. Step 3: Cross multiply
    186,368.50x = 279,596.49 × 61,709.50
  4. Step 4: Simplify right side
    186,368.50x = 17,253,759,599.66
  5. Step 5: Solve for x
    x = 17,253,759,599.66/186,368.50
  6. Step 6: Final answer
    x = 92,578.73

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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.