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Finding the Fourth Proportional to 230,892.60, 346,338.90 and 142,246.20

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Solution

The fourth proportional to 230,892.60, 346,338.90 and 142,246.20 is: 213,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,892.60 : 346,338.90 = 142,246.20 : x
  2. Step 2: Convert to fraction form
    230,892.60/346,338.90 = 142,246.20/x
  3. Step 3: Cross multiply
    230,892.60x = 346,338.90 × 142,246.20
  4. Step 4: Simplify right side
    230,892.60x = 49,265,392,437.18
  5. Step 5: Solve for x
    x = 49,265,392,437.18/230,892.60
  6. Step 6: Final answer
    x = 213,369.30

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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.