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Finding the Fourth Proportional to 68,116.80, 102,175.20 and 59,806.20

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Solution

The fourth proportional to 68,116.80, 102,175.20 and 59,806.20 is: 89,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,116.80 : 102,175.20 = 59,806.20 : x
  2. Step 2: Convert to fraction form
    68,116.80/102,175.20 = 59,806.20/x
  3. Step 3: Cross multiply
    68,116.80x = 102,175.20 × 59,806.20
  4. Step 4: Simplify right side
    68,116.80x = 6,110,710,446.24
  5. Step 5: Solve for x
    x = 6,110,710,446.24/68,116.80
  6. Step 6: Final answer
    x = 89,709.30

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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.