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Finding the Fourth Proportional to 125,993.76, 188,929.05 and 54,976.41

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Solution

The fourth proportional to 125,993.76, 188,929.05 and 54,976.41 is: 82,437.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,993.76 : 188,929.05 = 54,976.41 : x
  2. Step 2: Convert to fraction form
    125,993.76/188,929.05 = 54,976.41/x
  3. Step 3: Cross multiply
    125,993.76x = 188,929.05 × 54,976.41
  4. Step 4: Simplify right side
    125,993.76x = 10,386,640,913.71
  5. Step 5: Solve for x
    x = 10,386,640,913.71/125,993.76
  6. Step 6: Final answer
    x = 82,437.74

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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.