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Finding the Fourth Proportional to 194,456.20, 291,338.70 and 166,808.20

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Solution

The fourth proportional to 194,456.20, 291,338.70 and 166,808.20 is: 249,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,456.20 : 291,338.70 = 166,808.20 : x
  2. Step 2: Convert to fraction form
    194,456.20/291,338.70 = 166,808.20/x
  3. Step 3: Cross multiply
    194,456.20x = 291,338.70 × 166,808.20
  4. Step 4: Simplify right side
    194,456.20x = 48,597,684,137.34
  5. Step 5: Solve for x
    x = 48,597,684,137.34/194,456.20
  6. Step 6: Final answer
    x = 249,915.84

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1.5x scale

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.