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Finding the Fourth Proportional to 108,553.92, 149,802.66 and 60,806.88

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Solution

The fourth proportional to 108,553.92, 149,802.66 and 60,806.88 is: 83,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,553.92 : 149,802.66 = 60,806.88 : x
  2. Step 2: Convert to fraction form
    108,553.92/149,802.66 = 60,806.88/x
  3. Step 3: Cross multiply
    108,553.92x = 149,802.66 × 60,806.88
  4. Step 4: Simplify right side
    108,553.92x = 9,109,032,370.30
  5. Step 5: Solve for x
    x = 9,109,032,370.30/108,553.92
  6. Step 6: Final answer
    x = 83,912.51

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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.