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Finding the Fourth Proportional to 212,651.44, 293,472.21 and 117,158.11

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Solution

The fourth proportional to 212,651.44, 293,472.21 and 117,158.11 is: 161,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,651.44 : 293,472.21 = 117,158.11 : x
  2. Step 2: Convert to fraction form
    212,651.44/293,472.21 = 117,158.11/x
  3. Step 3: Cross multiply
    212,651.44x = 293,472.21 × 117,158.11
  4. Step 4: Simplify right side
    212,651.44x = 34,382,649,461.12
  5. Step 5: Solve for x
    x = 34,382,649,461.12/212,651.44
  6. Step 6: Final answer
    x = 161,685.48

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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.