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Finding the Fourth Proportional to 70,951.80, 106,427.70 and 58,267.20

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Solution

The fourth proportional to 70,951.80, 106,427.70 and 58,267.20 is: 87,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,951.80 : 106,427.70 = 58,267.20 : x
  2. Step 2: Convert to fraction form
    70,951.80/106,427.70 = 58,267.20/x
  3. Step 3: Cross multiply
    70,951.80x = 106,427.70 × 58,267.20
  4. Step 4: Simplify right side
    70,951.80x = 6,201,244,081.44
  5. Step 5: Solve for x
    x = 6,201,244,081.44/70,951.80
  6. Step 6: Final answer
    x = 87,400.80

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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.