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Finding the Fourth Proportional to 70,634.50, 97,484.25 and 40,826.50

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Solution

The fourth proportional to 70,634.50, 97,484.25 and 40,826.50 is: 56,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,634.50 : 97,484.25 = 40,826.50 : x
  2. Step 2: Convert to fraction form
    70,634.50/97,484.25 = 40,826.50/x
  3. Step 3: Cross multiply
    70,634.50x = 97,484.25 × 40,826.50
  4. Step 4: Simplify right side
    70,634.50x = 3,979,940,732.63
  5. Step 5: Solve for x
    x = 3,979,940,732.63/70,634.50
  6. Step 6: Final answer
    x = 56,345.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.