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Finding the Fourth Proportional to 111,843.99, 154,348.97 and 64,106.55

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Solution

The fourth proportional to 111,843.99, 154,348.97 and 64,106.55 is: 88,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,843.99 : 154,348.97 = 64,106.55 : x
  2. Step 2: Convert to fraction form
    111,843.99/154,348.97 = 64,106.55/x
  3. Step 3: Cross multiply
    111,843.99x = 154,348.97 × 64,106.55
  4. Step 4: Simplify right side
    111,843.99x = 9,894,779,642.22
  5. Step 5: Solve for x
    x = 9,894,779,642.22/111,843.99
  6. Step 6: Final answer
    x = 88,469.48

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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.