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Finding the Fourth Proportional to 72,463.82, 100,008.40 and 48,263.44

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Solution

The fourth proportional to 72,463.82, 100,008.40 and 48,263.44 is: 66,609.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,463.82 : 100,008.40 = 48,263.44 : x
  2. Step 2: Convert to fraction form
    72,463.82/100,008.40 = 48,263.44/x
  3. Step 3: Cross multiply
    72,463.82x = 100,008.40 × 48,263.44
  4. Step 4: Simplify right side
    72,463.82x = 4,826,749,412.90
  5. Step 5: Solve for x
    x = 4,826,749,412.90/72,463.82
  6. Step 6: Final answer
    x = 66,609.09

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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.