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Finding the Fourth Proportional to 148,693.68, 205,107.12 and 88,224.48

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Solution

The fourth proportional to 148,693.68, 205,107.12 and 88,224.48 is: 121,696.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,693.68 : 205,107.12 = 88,224.48 : x
  2. Step 2: Convert to fraction form
    148,693.68/205,107.12 = 88,224.48/x
  3. Step 3: Cross multiply
    148,693.68x = 205,107.12 × 88,224.48
  4. Step 4: Simplify right side
    148,693.68x = 18,095,469,006.30
  5. Step 5: Solve for x
    x = 18,095,469,006.30/148,693.68
  6. Step 6: Final answer
    x = 121,696.29

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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.