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Finding the Fourth Proportional to 262,632.30, 394,045.65 and 104,973.90

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Solution

The fourth proportional to 262,632.30, 394,045.65 and 104,973.90 is: 157,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,632.30 : 394,045.65 = 104,973.90 : x
  2. Step 2: Convert to fraction form
    262,632.30/394,045.65 = 104,973.90/x
  3. Step 3: Cross multiply
    262,632.30x = 394,045.65 × 104,973.90
  4. Step 4: Simplify right side
    262,632.30x = 41,364,508,658.54
  5. Step 5: Solve for x
    x = 41,364,508,658.54/262,632.30
  6. Step 6: Final answer
    x = 157,499.70

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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.