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Finding the Fourth Proportional to 125,479.19, 188,178.86 and 41,219.79

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Solution

The fourth proportional to 125,479.19, 188,178.86 and 41,219.79 is: 61,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,479.19 : 188,178.86 = 41,219.79 : x
  2. Step 2: Convert to fraction form
    125,479.19/188,178.86 = 41,219.79/x
  3. Step 3: Cross multiply
    125,479.19x = 188,178.86 × 41,219.79
  4. Step 4: Simplify right side
    125,479.19x = 7,756,692,885.54
  5. Step 5: Solve for x
    x = 7,756,692,885.54/125,479.19
  6. Step 6: Final answer
    x = 61,816.57

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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.