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Finding the Fourth Proportional to 186,349.50, 279,538.83 and 61,690.50

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Solution

The fourth proportional to 186,349.50, 279,538.83 and 61,690.50 is: 92,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,349.50 : 279,538.83 = 61,690.50 : x
  2. Step 2: Convert to fraction form
    186,349.50/279,538.83 = 61,690.50/x
  3. Step 3: Cross multiply
    186,349.50x = 279,538.83 × 61,690.50
  4. Step 4: Simplify right side
    186,349.50x = 17,244,890,192.12
  5. Step 5: Solve for x
    x = 17,244,890,192.12/186,349.50
  6. Step 6: Final answer
    x = 92,540.58

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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.