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Finding the Fourth Proportional to 72,336.84, 108,575.40 and 34,923.30

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Solution

The fourth proportional to 72,336.84, 108,575.40 and 34,923.30 is: 52,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.84 : 108,575.40 = 34,923.30 : x
  2. Step 2: Convert to fraction form
    72,336.84/108,575.40 = 34,923.30/x
  3. Step 3: Cross multiply
    72,336.84x = 108,575.40 × 34,923.30
  4. Step 4: Simplify right side
    72,336.84x = 3,791,811,266.82
  5. Step 5: Solve for x
    x = 3,791,811,266.82/72,336.84
  6. Step 6: Final answer
    x = 52,418.81

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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.