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Finding the Fourth Proportional to 141,876.46, 212,877.38 and 74,392.38

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Solution

The fourth proportional to 141,876.46, 212,877.38 and 74,392.38 is: 111,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876.46 : 212,877.38 = 74,392.38 : x
  2. Step 2: Convert to fraction form
    141,876.46/212,877.38 = 74,392.38/x
  3. Step 3: Cross multiply
    141,876.46x = 212,877.38 × 74,392.38
  4. Step 4: Simplify right side
    141,876.46x = 15,836,455,132.35
  5. Step 5: Solve for x
    x = 15,836,455,132.35/141,876.46
  6. Step 6: Final answer
    x = 111,621.44

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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.