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Finding the Fourth Proportional to 239,711.58, 330,701.34 and 168,138.36

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Solution

The fourth proportional to 239,711.58, 330,701.34 and 168,138.36 is: 231,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,711.58 : 330,701.34 = 168,138.36 : x
  2. Step 2: Convert to fraction form
    239,711.58/330,701.34 = 168,138.36/x
  3. Step 3: Cross multiply
    239,711.58x = 330,701.34 × 168,138.36
  4. Step 4: Simplify right side
    239,711.58x = 55,603,580,957.40
  5. Step 5: Solve for x
    x = 55,603,580,957.40/239,711.58
  6. Step 6: Final answer
    x = 231,960.35

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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.