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Finding the Fourth Proportional to 293,228.69, 439,879.25 and 103,649.95

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Solution

The fourth proportional to 293,228.69, 439,879.25 and 103,649.95 is: 155,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,228.69 : 439,879.25 = 103,649.95 : x
  2. Step 2: Convert to fraction form
    293,228.69/439,879.25 = 103,649.95/x
  3. Step 3: Cross multiply
    293,228.69x = 439,879.25 × 103,649.95
  4. Step 4: Simplify right side
    293,228.69x = 45,593,460,650.59
  5. Step 5: Solve for x
    x = 45,593,460,650.59/293,228.69
  6. Step 6: Final answer
    x = 155,487.72

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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.