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Finding the Fourth Proportional to 148,988.20, 223,493.10 and 89,696.20

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Solution

The fourth proportional to 148,988.20, 223,493.10 and 89,696.20 is: 134,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,988.20 : 223,493.10 = 89,696.20 : x
  2. Step 2: Convert to fraction form
    148,988.20/223,493.10 = 89,696.20/x
  3. Step 3: Cross multiply
    148,988.20x = 223,493.10 × 89,696.20
  4. Step 4: Simplify right side
    148,988.20x = 20,046,481,796.22
  5. Step 5: Solve for x
    x = 20,046,481,796.22/148,988.20
  6. Step 6: Final answer
    x = 134,550.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.