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Finding the Fourth Proportional to 67,422.20, 101,133.30 and 59,905.40

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Solution

The fourth proportional to 67,422.20, 101,133.30 and 59,905.40 is: 89,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,422.20 : 101,133.30 = 59,905.40 : x
  2. Step 2: Convert to fraction form
    67,422.20/101,133.30 = 59,905.40/x
  3. Step 3: Cross multiply
    67,422.20x = 101,133.30 × 59,905.40
  4. Step 4: Simplify right side
    67,422.20x = 6,058,430,789.82
  5. Step 5: Solve for x
    x = 6,058,430,789.82/67,422.20
  6. Step 6: Final answer
    x = 89,858.10

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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.