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Finding the Fourth Proportional to 79,275.65, 118,755.03 and 47,668.41

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Solution

The fourth proportional to 79,275.65, 118,755.03 and 47,668.41 is: 71,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,275.65 : 118,755.03 = 47,668.41 : x
  2. Step 2: Convert to fraction form
    79,275.65/118,755.03 = 47,668.41/x
  3. Step 3: Cross multiply
    79,275.65x = 118,755.03 × 47,668.41
  4. Step 4: Simplify right side
    79,275.65x = 5,660,863,459.60
  5. Step 5: Solve for x
    x = 5,660,863,459.60/79,275.65
  6. Step 6: Final answer
    x = 71,407.35

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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.