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Finding the Fourth Proportional to 230,856.90, 346,301.55 and 131,064.90

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Solution

The fourth proportional to 230,856.90, 346,301.55 and 131,064.90 is: 196,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,856.90 : 346,301.55 = 131,064.90 : x
  2. Step 2: Convert to fraction form
    230,856.90/346,301.55 = 131,064.90/x
  3. Step 3: Cross multiply
    230,856.90x = 346,301.55 × 131,064.90
  4. Step 4: Simplify right side
    230,856.90x = 45,387,978,020.60
  5. Step 5: Solve for x
    x = 45,387,978,020.60/230,856.90
  6. Step 6: Final answer
    x = 196,606.55

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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.