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Finding the Fourth Proportional to 111,653.93, 154,089.31 and 63,906.18

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Solution

The fourth proportional to 111,653.93, 154,089.31 and 63,906.18 is: 88,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,653.93 : 154,089.31 = 63,906.18 : x
  2. Step 2: Convert to fraction form
    111,653.93/154,089.31 = 63,906.18/x
  3. Step 3: Cross multiply
    111,653.93x = 154,089.31 × 63,906.18
  4. Step 4: Simplify right side
    111,653.93x = 9,847,259,609.65
  5. Step 5: Solve for x
    x = 9,847,259,609.65/111,653.93
  6. Step 6: Final answer
    x = 88,194.48

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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.