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Finding the Fourth Proportional to 68,870.10, 103,305.15 and 59,028.60

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Solution

The fourth proportional to 68,870.10, 103,305.15 and 59,028.60 is: 88,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,870.10 : 103,305.15 = 59,028.60 : x
  2. Step 2: Convert to fraction form
    68,870.10/103,305.15 = 59,028.60/x
  3. Step 3: Cross multiply
    68,870.10x = 103,305.15 × 59,028.60
  4. Step 4: Simplify right side
    68,870.10x = 6,097,958,377.29
  5. Step 5: Solve for x
    x = 6,097,958,377.29/68,870.10
  6. Step 6: Final answer
    x = 88,542.90

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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.