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Finding the Fourth Proportional to 293,108.60, 439,619.70 and 82,767.80

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Solution

The fourth proportional to 293,108.60, 439,619.70 and 82,767.80 is: 124,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,108.60 : 439,619.70 = 82,767.80 : x
  2. Step 2: Convert to fraction form
    293,108.60/439,619.70 = 82,767.80/x
  3. Step 3: Cross multiply
    293,108.60x = 439,619.70 × 82,767.80
  4. Step 4: Simplify right side
    293,108.60x = 36,386,355,405.66
  5. Step 5: Solve for x
    x = 36,386,355,405.66/293,108.60
  6. Step 6: Final answer
    x = 124,139.50

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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.