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Finding the Fourth Proportional to 68,516.94, 102,700.33 and 35,238.76

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Solution

The fourth proportional to 68,516.94, 102,700.33 and 35,238.76 is: 52,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,516.94 : 102,700.33 = 35,238.76 : x
  2. Step 2: Convert to fraction form
    68,516.94/102,700.33 = 35,238.76/x
  3. Step 3: Cross multiply
    68,516.94x = 102,700.33 × 35,238.76
  4. Step 4: Simplify right side
    68,516.94x = 3,619,032,280.79
  5. Step 5: Solve for x
    x = 3,619,032,280.79/68,516.94
  6. Step 6: Final answer
    x = 52,819.53

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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.