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Finding the Fourth Proportional to 158,645.70, 237,976.44 and 52,040.40

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Solution

The fourth proportional to 158,645.70, 237,976.44 and 52,040.40 is: 78,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,645.70 : 237,976.44 = 52,040.40 : x
  2. Step 2: Convert to fraction form
    158,645.70/237,976.44 = 52,040.40/x
  3. Step 3: Cross multiply
    158,645.70x = 237,976.44 × 52,040.40
  4. Step 4: Simplify right side
    158,645.70x = 12,384,389,128.18
  5. Step 5: Solve for x
    x = 12,384,389,128.18/158,645.70
  6. Step 6: Final answer
    x = 78,063.19

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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.