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Finding the Fourth Proportional to 230,901.96, 318,697.83 and 135,439.41

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Solution

The fourth proportional to 230,901.96, 318,697.83 and 135,439.41 is: 186,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,901.96 : 318,697.83 = 135,439.41 : x
  2. Step 2: Convert to fraction form
    230,901.96/318,697.83 = 135,439.41/x
  3. Step 3: Cross multiply
    230,901.96x = 318,697.83 × 135,439.41
  4. Step 4: Simplify right side
    230,901.96x = 43,164,246,063.48
  5. Step 5: Solve for x
    x = 43,164,246,063.48/230,901.96
  6. Step 6: Final answer
    x = 186,937.55

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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.