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Finding the Fourth Proportional to 201,426.30, 301,811.40 and 148,282.20

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Solution

The fourth proportional to 201,426.30, 301,811.40 and 148,282.20 is: 222,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,426.30 : 301,811.40 = 148,282.20 : x
  2. Step 2: Convert to fraction form
    201,426.30/301,811.40 = 148,282.20/x
  3. Step 3: Cross multiply
    201,426.30x = 301,811.40 × 148,282.20
  4. Step 4: Simplify right side
    201,426.30x = 44,753,258,377.08
  5. Step 5: Solve for x
    x = 44,753,258,377.08/201,426.30
  6. Step 6: Final answer
    x = 222,181.80

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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.