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Finding the Fourth Proportional to 188,215.56, 280,969.48 and 161,271.41

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Solution

The fourth proportional to 188,215.56, 280,969.48 and 161,271.41 is: 240,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,215.56 : 280,969.48 = 161,271.41 : x
  2. Step 2: Convert to fraction form
    188,215.56/280,969.48 = 161,271.41/x
  3. Step 3: Cross multiply
    188,215.56x = 280,969.48 × 161,271.41
  4. Step 4: Simplify right side
    188,215.56x = 45,312,344,206.57
  5. Step 5: Solve for x
    x = 45,312,344,206.57/188,215.56
  6. Step 6: Final answer
    x = 240,747.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.