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Finding the Fourth Proportional to 111,607.83, 154,013.27 and 63,202.23

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Solution

The fourth proportional to 111,607.83, 154,013.27 and 63,202.23 is: 87,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,607.83 : 154,013.27 = 63,202.23 : x
  2. Step 2: Convert to fraction form
    111,607.83/154,013.27 = 63,202.23/x
  3. Step 3: Cross multiply
    111,607.83x = 154,013.27 × 63,202.23
  4. Step 4: Simplify right side
    111,607.83x = 9,733,981,797.58
  5. Step 5: Solve for x
    x = 9,733,981,797.58/111,607.83
  6. Step 6: Final answer
    x = 87,215.94

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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.