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Finding the Fourth Proportional to 231,808.92, 347,713.38 and 126,570.48

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Solution

The fourth proportional to 231,808.92, 347,713.38 and 126,570.48 is: 189,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,808.92 : 347,713.38 = 126,570.48 : x
  2. Step 2: Convert to fraction form
    231,808.92/347,713.38 = 126,570.48/x
  3. Step 3: Cross multiply
    231,808.92x = 347,713.38 × 126,570.48
  4. Step 4: Simplify right side
    231,808.92x = 44,010,249,409.02
  5. Step 5: Solve for x
    x = 44,010,249,409.02/231,808.92
  6. Step 6: Final answer
    x = 189,855.72

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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.