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Finding the Fourth Proportional to 70,588.46, 105,891.89 and 37,309.79

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Solution

The fourth proportional to 70,588.46, 105,891.89 and 37,309.79 is: 55,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,588.46 : 105,891.89 = 37,309.79 : x
  2. Step 2: Convert to fraction form
    70,588.46/105,891.89 = 37,309.79/x
  3. Step 3: Cross multiply
    70,588.46x = 105,891.89 × 37,309.79
  4. Step 4: Simplify right side
    70,588.46x = 3,950,803,462.59
  5. Step 5: Solve for x
    x = 3,950,803,462.59/70,588.46
  6. Step 6: Final answer
    x = 55,969.54

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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.