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Finding the Fourth Proportional to 236,561.92, 326,406.70 and 135,940.48

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Solution

The fourth proportional to 236,561.92, 326,406.70 and 135,940.48 is: 187,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,561.92 : 326,406.70 = 135,940.48 : x
  2. Step 2: Convert to fraction form
    236,561.92/326,406.70 = 135,940.48/x
  3. Step 3: Cross multiply
    236,561.92x = 326,406.70 × 135,940.48
  4. Step 4: Simplify right side
    236,561.92x = 44,371,883,473.22
  5. Step 5: Solve for x
    x = 44,371,883,473.22/236,561.92
  6. Step 6: Final answer
    x = 187,569.85

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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.