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Finding the Fourth Proportional to 68,011.88, 102,079.74 and 34,754.84

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Solution

The fourth proportional to 68,011.88, 102,079.74 and 34,754.84 is: 52,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,011.88 : 102,079.74 = 34,754.84 : x
  2. Step 2: Convert to fraction form
    68,011.88/102,079.74 = 34,754.84/x
  3. Step 3: Cross multiply
    68,011.88x = 102,079.74 × 34,754.84
  4. Step 4: Simplify right side
    68,011.88x = 3,547,765,030.94
  5. Step 5: Solve for x
    x = 3,547,765,030.94/68,011.88
  6. Step 6: Final answer
    x = 52,163.90

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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.