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Finding the Fourth Proportional to 230,998.80, 345,979.80 and 189,526.80

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Solution

The fourth proportional to 230,998.80, 345,979.80 and 189,526.80 is: 283,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,998.80 : 345,979.80 = 189,526.80 : x
  2. Step 2: Convert to fraction form
    230,998.80/345,979.80 = 189,526.80/x
  3. Step 3: Cross multiply
    230,998.80x = 345,979.80 × 189,526.80
  4. Step 4: Simplify right side
    230,998.80x = 65,572,444,358.64
  5. Step 5: Solve for x
    x = 65,572,444,358.64/230,998.80
  6. Step 6: Final answer
    x = 283,864.87

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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.