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Finding the Fourth Proportional to 108,940.92, 150,338.52 and 61,194.28

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Solution

The fourth proportional to 108,940.92, 150,338.52 and 61,194.28 is: 84,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,940.92 : 150,338.52 = 61,194.28 : x
  2. Step 2: Convert to fraction form
    108,940.92/150,338.52 = 61,194.28/x
  3. Step 3: Cross multiply
    108,940.92x = 150,338.52 × 61,194.28
  4. Step 4: Simplify right side
    108,940.92x = 9,199,857,487.67
  5. Step 5: Solve for x
    x = 9,199,857,487.67/108,940.92
  6. Step 6: Final answer
    x = 84,448.13

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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.