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Finding the Fourth Proportional to 72,334.80, 108,502.20 and 44,341.20

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Solution

The fourth proportional to 72,334.80, 108,502.20 and 44,341.20 is: 66,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,334.80 : 108,502.20 = 44,341.20 : x
  2. Step 2: Convert to fraction form
    72,334.80/108,502.20 = 44,341.20/x
  3. Step 3: Cross multiply
    72,334.80x = 108,502.20 × 44,341.20
  4. Step 4: Simplify right side
    72,334.80x = 4,811,117,750.64
  5. Step 5: Solve for x
    x = 4,811,117,750.64/72,334.80
  6. Step 6: Final answer
    x = 66,511.80

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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.