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Finding the Fourth Proportional to 194,200.80, 291,349.80 and 154,370.40

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Solution

The fourth proportional to 194,200.80, 291,349.80 and 154,370.40 is: 231,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,200.80 : 291,349.80 = 154,370.40 : x
  2. Step 2: Convert to fraction form
    194,200.80/291,349.80 = 154,370.40/x
  3. Step 3: Cross multiply
    194,200.80x = 291,349.80 × 154,370.40
  4. Step 4: Simplify right side
    194,200.80x = 44,975,785,165.92
  5. Step 5: Solve for x
    x = 44,975,785,165.92/194,200.80
  6. Step 6: Final answer
    x = 231,594.23

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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.