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Finding the Fourth Proportional to 230,892.40, 346,557.30 and 142,318.90

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Solution

The fourth proportional to 230,892.40, 346,557.30 and 142,318.90 is: 213,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,892.40 : 346,557.30 = 142,318.90 : x
  2. Step 2: Convert to fraction form
    230,892.40/346,557.30 = 142,318.90/x
  3. Step 3: Cross multiply
    230,892.40x = 346,557.30 × 142,318.90
  4. Step 4: Simplify right side
    230,892.40x = 49,321,653,722.97
  5. Step 5: Solve for x
    x = 49,321,653,722.97/230,892.40
  6. Step 6: Final answer
    x = 213,613.15

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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.