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Finding the Fourth Proportional to 161,479.64, 222,832.42 and 93,491.75

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Solution

The fourth proportional to 161,479.64, 222,832.42 and 93,491.75 is: 129,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,479.64 : 222,832.42 = 93,491.75 : x
  2. Step 2: Convert to fraction form
    161,479.64/222,832.42 = 93,491.75/x
  3. Step 3: Cross multiply
    161,479.64x = 222,832.42 × 93,491.75
  4. Step 4: Simplify right side
    161,479.64x = 20,832,993,225.89
  5. Step 5: Solve for x
    x = 20,832,993,225.89/161,479.64
  6. Step 6: Final answer
    x = 129,013.12

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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.