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Finding the Fourth Proportional to 126,249.65, 189,374.23 and 73,622.23

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Solution

The fourth proportional to 126,249.65, 189,374.23 and 73,622.23 is: 110,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,249.65 : 189,374.23 = 73,622.23 : x
  2. Step 2: Convert to fraction form
    126,249.65/189,374.23 = 73,622.23/x
  3. Step 3: Cross multiply
    126,249.65x = 189,374.23 × 73,622.23
  4. Step 4: Simplify right side
    126,249.65x = 13,942,153,117.13
  5. Step 5: Solve for x
    x = 13,942,153,117.13/126,249.65
  6. Step 6: Final answer
    x = 110,433.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.