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Finding the Fourth Proportional to 111,770.52, 154,230.39 and 64,021.02

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Solution

The fourth proportional to 111,770.52, 154,230.39 and 64,021.02 is: 88,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,770.52 : 154,230.39 = 64,021.02 : x
  2. Step 2: Convert to fraction form
    111,770.52/154,230.39 = 64,021.02/x
  3. Step 3: Cross multiply
    111,770.52x = 154,230.39 × 64,021.02
  4. Step 4: Simplify right side
    111,770.52x = 9,873,986,882.80
  5. Step 5: Solve for x
    x = 9,873,986,882.80/111,770.52
  6. Step 6: Final answer
    x = 88,341.60

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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.