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Finding the Fourth Proportional to 67,150.68, 100,156.08 and 65,969.88

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Solution

The fourth proportional to 67,150.68, 100,156.08 and 65,969.88 is: 98,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,150.68 : 100,156.08 = 65,969.88 : x
  2. Step 2: Convert to fraction form
    67,150.68/100,156.08 = 65,969.88/x
  3. Step 3: Cross multiply
    67,150.68x = 100,156.08 × 65,969.88
  4. Step 4: Simplify right side
    67,150.68x = 6,607,284,578.87
  5. Step 5: Solve for x
    x = 6,607,284,578.87/67,150.68
  6. Step 6: Final answer
    x = 98,394.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.