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Finding the Fourth Proportional to 111,995.72, 154,527.22 and 63,586.92

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Solution

The fourth proportional to 111,995.72, 154,527.22 and 63,586.92 is: 87,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,995.72 : 154,527.22 = 63,586.92 : x
  2. Step 2: Convert to fraction form
    111,995.72/154,527.22 = 63,586.92/x
  3. Step 3: Cross multiply
    111,995.72x = 154,527.22 × 63,586.92
  4. Step 4: Simplify right side
    111,995.72x = 9,825,909,975.96
  5. Step 5: Solve for x
    x = 9,825,909,975.96/111,995.72
  6. Step 6: Final answer
    x = 87,734.69

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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.