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Finding the Fourth Proportional to 109,110.20, 163,578.90 and 59,862.20

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Solution

The fourth proportional to 109,110.20, 163,578.90 and 59,862.20 is: 89,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,110.20 : 163,578.90 = 59,862.20 : x
  2. Step 2: Convert to fraction form
    109,110.20/163,578.90 = 59,862.20/x
  3. Step 3: Cross multiply
    109,110.20x = 163,578.90 × 59,862.20
  4. Step 4: Simplify right side
    109,110.20x = 9,792,192,827.58
  5. Step 5: Solve for x
    x = 9,792,192,827.58/109,110.20
  6. Step 6: Final answer
    x = 89,745.90

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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.