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Finding the Fourth Proportional to 239,086.56, 358,628.76 and 61,578.48

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Solution

The fourth proportional to 239,086.56, 358,628.76 and 61,578.48 is: 92,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,086.56 : 358,628.76 = 61,578.48 : x
  2. Step 2: Convert to fraction form
    239,086.56/358,628.76 = 61,578.48/x
  3. Step 3: Cross multiply
    239,086.56x = 358,628.76 × 61,578.48
  4. Step 4: Simplify right side
    239,086.56x = 22,083,813,925.08
  5. Step 5: Solve for x
    x = 22,083,813,925.08/239,086.56
  6. Step 6: Final answer
    x = 92,367.44

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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.