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Finding the Fourth Proportional to 68,219.51, 102,140.31 and 34,867.76

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Solution

The fourth proportional to 68,219.51, 102,140.31 and 34,867.76 is: 52,205.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.51 : 102,140.31 = 34,867.76 : x
  2. Step 2: Convert to fraction form
    68,219.51/102,140.31 = 34,867.76/x
  3. Step 3: Cross multiply
    68,219.51x = 102,140.31 × 34,867.76
  4. Step 4: Simplify right side
    68,219.51x = 3,561,403,304.70
  5. Step 5: Solve for x
    x = 3,561,403,304.70/68,219.51
  6. Step 6: Final answer
    x = 52,205.06

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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.