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Finding the Fourth Proportional to 293,036.60, 439,511.70 and 82,695.80

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Solution

The fourth proportional to 293,036.60, 439,511.70 and 82,695.80 is: 124,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,036.60 : 439,511.70 = 82,695.80 : x
  2. Step 2: Convert to fraction form
    293,036.60/439,511.70 = 82,695.80/x
  3. Step 3: Cross multiply
    293,036.60x = 439,511.70 × 82,695.80
  4. Step 4: Simplify right side
    293,036.60x = 36,345,771,640.86
  5. Step 5: Solve for x
    x = 36,345,771,640.86/293,036.60
  6. Step 6: Final answer
    x = 124,031.51

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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.