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Finding the Fourth Proportional to 68,668.16, 103,040.51 and 37,077.55

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Solution

The fourth proportional to 68,668.16, 103,040.51 and 37,077.55 is: 55,636.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,668.16 : 103,040.51 = 37,077.55 : x
  2. Step 2: Convert to fraction form
    68,668.16/103,040.51 = 37,077.55/x
  3. Step 3: Cross multiply
    68,668.16x = 103,040.51 × 37,077.55
  4. Step 4: Simplify right side
    68,668.16x = 3,820,489,218.56
  5. Step 5: Solve for x
    x = 3,820,489,218.56/68,668.16
  6. Step 6: Final answer
    x = 55,636.99

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1.5x scale

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.