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Finding the Fourth Proportional to 68,423.68, 102,602.64 and 35,126.56

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Solution

The fourth proportional to 68,423.68, 102,602.64 and 35,126.56 is: 52,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.68 : 102,602.64 = 35,126.56 : x
  2. Step 2: Convert to fraction form
    68,423.68/102,602.64 = 35,126.56/x
  3. Step 3: Cross multiply
    68,423.68x = 102,602.64 × 35,126.56
  4. Step 4: Simplify right side
    68,423.68x = 3,604,077,790.12
  5. Step 5: Solve for x
    x = 3,604,077,790.12/68,423.68
  6. Step 6: Final answer
    x = 52,672.96

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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.