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Finding the Fourth Proportional to 112,168.26, 154,789.74 and 61,867.26

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Solution

The fourth proportional to 112,168.26, 154,789.74 and 61,867.26 is: 85,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,168.26 : 154,789.74 = 61,867.26 : x
  2. Step 2: Convert to fraction form
    112,168.26/154,789.74 = 61,867.26/x
  3. Step 3: Cross multiply
    112,168.26x = 154,789.74 × 61,867.26
  4. Step 4: Simplify right side
    112,168.26x = 9,576,417,089.91
  5. Step 5: Solve for x
    x = 9,576,417,089.91/112,168.26
  6. Step 6: Final answer
    x = 85,375.46

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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.