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Finding the Fourth Proportional to 111,704.98, 154,148.97 and 61,403.62

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Solution

The fourth proportional to 111,704.98, 154,148.97 and 61,403.62 is: 84,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,704.98 : 154,148.97 = 61,403.62 : x
  2. Step 2: Convert to fraction form
    111,704.98/154,148.97 = 61,403.62/x
  3. Step 3: Cross multiply
    111,704.98x = 154,148.97 × 61,403.62
  4. Step 4: Simplify right side
    111,704.98x = 9,465,304,777.27
  5. Step 5: Solve for x
    x = 9,465,304,777.27/111,704.98
  6. Step 6: Final answer
    x = 84,734.85

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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.