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Finding the Fourth Proportional to 194,485.20, 291,382.20 and 166,837.20

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Solution

The fourth proportional to 194,485.20, 291,382.20 and 166,837.20 is: 249,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,485.20 : 291,382.20 = 166,837.20 : x
  2. Step 2: Convert to fraction form
    194,485.20/291,382.20 = 166,837.20/x
  3. Step 3: Cross multiply
    194,485.20x = 291,382.20 × 166,837.20
  4. Step 4: Simplify right side
    194,485.20x = 48,613,390,377.84
  5. Step 5: Solve for x
    x = 48,613,390,377.84/194,485.20
  6. Step 6: Final answer
    x = 249,959.33

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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.