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Finding the Fourth Proportional to 64,839.65, 97,212.20 and 43,727.22

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Solution

The fourth proportional to 64,839.65, 97,212.20 and 43,727.22 is: 65,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,839.65 : 97,212.20 = 43,727.22 : x
  2. Step 2: Convert to fraction form
    64,839.65/97,212.20 = 43,727.22/x
  3. Step 3: Cross multiply
    64,839.65x = 97,212.20 × 43,727.22
  4. Step 4: Simplify right side
    64,839.65x = 4,250,819,037.45
  5. Step 5: Solve for x
    x = 4,250,819,037.45/64,839.65
  6. Step 6: Final answer
    x = 65,558.95

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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.