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Finding the Fourth Proportional to 67,443.71, 101,165.45 and 20,058.57

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Solution

The fourth proportional to 67,443.71, 101,165.45 and 20,058.57 is: 30,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,443.71 : 101,165.45 = 20,058.57 : x
  2. Step 2: Convert to fraction form
    67,443.71/101,165.45 = 20,058.57/x
  3. Step 3: Cross multiply
    67,443.71x = 101,165.45 × 20,058.57
  4. Step 4: Simplify right side
    67,443.71x = 2,029,234,160.11
  5. Step 5: Solve for x
    x = 2,029,234,160.11/67,443.71
  6. Step 6: Final answer
    x = 30,087.82

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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.