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Finding the Fourth Proportional to 211,508.91, 317,366.64 and 93,165.48

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Solution

The fourth proportional to 211,508.91, 317,366.64 and 93,165.48 is: 139,793.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,508.91 : 317,366.64 = 93,165.48 : x
  2. Step 2: Convert to fraction form
    211,508.91/317,366.64 = 93,165.48/x
  3. Step 3: Cross multiply
    211,508.91x = 317,366.64 × 93,165.48
  4. Step 4: Simplify right side
    211,508.91x = 29,567,615,351.59
  5. Step 5: Solve for x
    x = 29,567,615,351.59/211,508.91
  6. Step 6: Final answer
    x = 139,793.71

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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.