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Finding the Fourth Proportional to 91,950.65, 126,892.01 and 51,664.40

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Solution

The fourth proportional to 91,950.65, 126,892.01 and 51,664.40 is: 71,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,950.65 : 126,892.01 = 51,664.40 : x
  2. Step 2: Convert to fraction form
    91,950.65/126,892.01 = 51,664.40/x
  3. Step 3: Cross multiply
    91,950.65x = 126,892.01 × 51,664.40
  4. Step 4: Simplify right side
    91,950.65x = 6,555,798,668.66
  5. Step 5: Solve for x
    x = 6,555,798,668.66/91,950.65
  6. Step 6: Final answer
    x = 71,296.92

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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.