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Finding the Fourth Proportional to 228,316.80, 315,092.94 and 126,346.56

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Solution

The fourth proportional to 228,316.80, 315,092.94 and 126,346.56 is: 174,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,316.80 : 315,092.94 = 126,346.56 : x
  2. Step 2: Convert to fraction form
    228,316.80/315,092.94 = 126,346.56/x
  3. Step 3: Cross multiply
    228,316.80x = 315,092.94 × 126,346.56
  4. Step 4: Simplify right side
    228,316.80x = 39,810,909,049.29
  5. Step 5: Solve for x
    x = 39,810,909,049.29/228,316.80
  6. Step 6: Final answer
    x = 174,366.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.