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Finding the Fourth Proportional to 243,814.41, 336,316.76 and 161,028.90

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Solution

The fourth proportional to 243,814.41, 336,316.76 and 161,028.90 is: 222,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,814.41 : 336,316.76 = 161,028.90 : x
  2. Step 2: Convert to fraction form
    243,814.41/336,316.76 = 161,028.90/x
  3. Step 3: Cross multiply
    243,814.41x = 336,316.76 × 161,028.90
  4. Step 4: Simplify right side
    243,814.41x = 54,156,715,427.64
  5. Step 5: Solve for x
    x = 54,156,715,427.64/243,814.41
  6. Step 6: Final answer
    x = 222,122.71

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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.