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Finding the Fourth Proportional to 204,078.69, 306,118.71 and 61,925.13

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Solution

The fourth proportional to 204,078.69, 306,118.71 and 61,925.13 is: 92,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.69 : 306,118.71 = 61,925.13 : x
  2. Step 2: Convert to fraction form
    204,078.69/306,118.71 = 61,925.13/x
  3. Step 3: Cross multiply
    204,078.69x = 306,118.71 × 61,925.13
  4. Step 4: Simplify right side
    204,078.69x = 18,956,440,912.18
  5. Step 5: Solve for x
    x = 18,956,440,912.18/204,078.69
  6. Step 6: Final answer
    x = 92,887.90

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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.