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Finding the Fourth Proportional to 77,251.46, 106,615.98 and 47,054.45

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Solution

The fourth proportional to 77,251.46, 106,615.98 and 47,054.45 is: 64,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,251.46 : 106,615.98 = 47,054.45 : x
  2. Step 2: Convert to fraction form
    77,251.46/106,615.98 = 47,054.45/x
  3. Step 3: Cross multiply
    77,251.46x = 106,615.98 × 47,054.45
  4. Step 4: Simplify right side
    77,251.46x = 5,016,756,566.65
  5. Step 5: Solve for x
    x = 5,016,756,566.65/77,251.46
  6. Step 6: Final answer
    x = 64,940.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.