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Finding the Fourth Proportional to 108,253.36, 149,292.88 and 67,970.88

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Solution

The fourth proportional to 108,253.36, 149,292.88 and 67,970.88 is: 93,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,253.36 : 149,292.88 = 67,970.88 : x
  2. Step 2: Convert to fraction form
    108,253.36/149,292.88 = 67,970.88/x
  3. Step 3: Cross multiply
    108,253.36x = 149,292.88 × 67,970.88
  4. Step 4: Simplify right side
    108,253.36x = 10,147,568,431.33
  5. Step 5: Solve for x
    x = 10,147,568,431.33/108,253.36
  6. Step 6: Final answer
    x = 93,739.06

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1.5x scale

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.