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Finding the Fourth Proportional to 69,967.84, 104,542.28 and 67,517.92

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Solution

The fourth proportional to 69,967.84, 104,542.28 and 67,517.92 is: 100,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.84 : 104,542.28 = 67,517.92 : x
  2. Step 2: Convert to fraction form
    69,967.84/104,542.28 = 67,517.92/x
  3. Step 3: Cross multiply
    69,967.84x = 104,542.28 × 67,517.92
  4. Step 4: Simplify right side
    69,967.84x = 7,058,477,297.66
  5. Step 5: Solve for x
    x = 7,058,477,297.66/69,967.84
  6. Step 6: Final answer
    x = 100,881.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.