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Finding the Fourth Proportional to 72,397.41, 108,628.92 and 34,950.50

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Solution

The fourth proportional to 72,397.41, 108,628.92 and 34,950.50 is: 52,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,397.41 : 108,628.92 = 34,950.50 : x
  2. Step 2: Convert to fraction form
    72,397.41/108,628.92 = 34,950.50/x
  3. Step 3: Cross multiply
    72,397.41x = 108,628.92 × 34,950.50
  4. Step 4: Simplify right side
    72,397.41x = 3,796,634,932.67
  5. Step 5: Solve for x
    x = 3,796,634,932.67/72,397.41
  6. Step 6: Final answer
    x = 52,441.59

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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.