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Finding the Fourth Proportional to 91,962.68, 126,894.35 and 51,668.71

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Solution

The fourth proportional to 91,962.68, 126,894.35 and 51,668.71 is: 71,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,962.68 : 126,894.35 = 51,668.71 : x
  2. Step 2: Convert to fraction form
    91,962.68/126,894.35 = 51,668.71/x
  3. Step 3: Cross multiply
    91,962.68x = 126,894.35 × 51,668.71
  4. Step 4: Simplify right side
    91,962.68x = 6,556,467,182.72
  5. Step 5: Solve for x
    x = 6,556,467,182.72/91,962.68
  6. Step 6: Final answer
    x = 71,294.87

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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.