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Finding the Fourth Proportional to 111,239.40, 166,859.10 and 44,711.40

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Solution

The fourth proportional to 111,239.40, 166,859.10 and 44,711.40 is: 67,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,239.40 : 166,859.10 = 44,711.40 : x
  2. Step 2: Convert to fraction form
    111,239.40/166,859.10 = 44,711.40/x
  3. Step 3: Cross multiply
    111,239.40x = 166,859.10 × 44,711.40
  4. Step 4: Simplify right side
    111,239.40x = 7,460,503,963.74
  5. Step 5: Solve for x
    x = 7,460,503,963.74/111,239.40
  6. Step 6: Final answer
    x = 67,067.10

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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.