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Finding the Fourth Proportional to 108,463.92, 149,673.24 and 60,716.40

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Solution

The fourth proportional to 108,463.92, 149,673.24 and 60,716.40 is: 83,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,463.92 : 149,673.24 = 60,716.40 : x
  2. Step 2: Convert to fraction form
    108,463.92/149,673.24 = 60,716.40/x
  3. Step 3: Cross multiply
    108,463.92x = 149,673.24 × 60,716.40
  4. Step 4: Simplify right side
    108,463.92x = 9,087,620,309.14
  5. Step 5: Solve for x
    x = 9,087,620,309.14/108,463.92
  6. Step 6: Final answer
    x = 83,784.73

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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.