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Finding the Fourth Proportional to 108,364.97, 149,544.21 and 60,618.30

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Solution

The fourth proportional to 108,364.97, 149,544.21 and 60,618.30 is: 83,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,364.97 : 149,544.21 = 60,618.30 : x
  2. Step 2: Convert to fraction form
    108,364.97/149,544.21 = 60,618.30/x
  3. Step 3: Cross multiply
    108,364.97x = 149,544.21 × 60,618.30
  4. Step 4: Simplify right side
    108,364.97x = 9,065,115,785.04
  5. Step 5: Solve for x
    x = 9,065,115,785.04/108,364.97
  6. Step 6: Final answer
    x = 83,653.56

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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.