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Finding the Fourth Proportional to 111,125.99, 166,697.49 and 47,947.61

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Solution

The fourth proportional to 111,125.99, 166,697.49 and 47,947.61 is: 71,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,125.99 : 166,697.49 = 47,947.61 : x
  2. Step 2: Convert to fraction form
    111,125.99/166,697.49 = 47,947.61/x
  3. Step 3: Cross multiply
    111,125.99x = 166,697.49 × 47,947.61
  4. Step 4: Simplify right side
    111,125.99x = 7,992,746,238.50
  5. Step 5: Solve for x
    x = 7,992,746,238.50/111,125.99
  6. Step 6: Final answer
    x = 71,925.08

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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.