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Finding the Fourth Proportional to 156,778.40, 234,908.40 and 133,450.40

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Solution

The fourth proportional to 156,778.40, 234,908.40 and 133,450.40 is: 199,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.40 : 234,908.40 = 133,450.40 : x
  2. Step 2: Convert to fraction form
    156,778.40/234,908.40 = 133,450.40/x
  3. Step 3: Cross multiply
    156,778.40x = 234,908.40 × 133,450.40
  4. Step 4: Simplify right side
    156,778.40x = 31,348,619,943.36
  5. Step 5: Solve for x
    x = 31,348,619,943.36/156,778.40
  6. Step 6: Final answer
    x = 199,954.97

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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.