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Finding the Fourth Proportional to 262,776.70, 394,165.05 and 96,543.10

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Solution

The fourth proportional to 262,776.70, 394,165.05 and 96,543.10 is: 144,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,776.70 : 394,165.05 = 96,543.10 : x
  2. Step 2: Convert to fraction form
    262,776.70/394,165.05 = 96,543.10/x
  3. Step 3: Cross multiply
    262,776.70x = 394,165.05 × 96,543.10
  4. Step 4: Simplify right side
    262,776.70x = 38,053,915,838.66
  5. Step 5: Solve for x
    x = 38,053,915,838.66/262,776.70
  6. Step 6: Final answer
    x = 144,814.65

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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.