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Finding the Fourth Proportional to 125,953.72, 188,979.82 and 47,049.53

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Solution

The fourth proportional to 125,953.72, 188,979.82 and 47,049.53 is: 70,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,953.72 : 188,979.82 = 47,049.53 : x
  2. Step 2: Convert to fraction form
    125,953.72/188,979.82 = 47,049.53/x
  3. Step 3: Cross multiply
    125,953.72x = 188,979.82 × 47,049.53
  4. Step 4: Simplify right side
    125,953.72x = 8,891,410,647.96
  5. Step 5: Solve for x
    x = 8,891,410,647.96/125,953.72
  6. Step 6: Final answer
    x = 70,592.68

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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.