Home / 293,135.18-439,719.78-82,755.50

Finding the Fourth Proportional to 293,135.18, 439,719.78 and 82,755.50

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Solution

The fourth proportional to 293,135.18, 439,719.78 and 82,755.50 is: 124,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,135.18 : 439,719.78 = 82,755.50 : x
  2. Step 2: Convert to fraction form
    293,135.18/439,719.78 = 82,755.50/x
  3. Step 3: Cross multiply
    293,135.18x = 439,719.78 × 82,755.50
  4. Step 4: Simplify right side
    293,135.18x = 36,389,230,253.79
  5. Step 5: Solve for x
    x = 36,389,230,253.79/293,135.18
  6. Step 6: Final answer
    x = 124,138.05

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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.