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Finding the Fourth Proportional to 262,909.61, 394,430.76 and 73,369.82

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Solution

The fourth proportional to 262,909.61, 394,430.76 and 73,369.82 is: 110,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,909.61 : 394,430.76 = 73,369.82 : x
  2. Step 2: Convert to fraction form
    262,909.61/394,430.76 = 73,369.82/x
  3. Step 3: Cross multiply
    262,909.61x = 394,430.76 × 73,369.82
  4. Step 4: Simplify right side
    262,909.61x = 28,939,313,863.66
  5. Step 5: Solve for x
    x = 28,939,313,863.66/262,909.61
  6. Step 6: Final answer
    x = 110,073.24

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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.