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Finding the Fourth Proportional to 72,203.88, 108,140.54 and 44,061.98

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Solution

The fourth proportional to 72,203.88, 108,140.54 and 44,061.98 is: 65,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.88 : 108,140.54 = 44,061.98 : x
  2. Step 2: Convert to fraction form
    72,203.88/108,140.54 = 44,061.98/x
  3. Step 3: Cross multiply
    72,203.88x = 108,140.54 × 44,061.98
  4. Step 4: Simplify right side
    72,203.88x = 4,764,885,921.43
  5. Step 5: Solve for x
    x = 4,764,885,921.43/72,203.88
  6. Step 6: Final answer
    x = 65,992.10

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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.