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Finding the Fourth Proportional to 211,162.68, 316,846.62 and 92,818.71

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Solution

The fourth proportional to 211,162.68, 316,846.62 and 92,818.71 is: 139,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,162.68 : 316,846.62 = 92,818.71 : x
  2. Step 2: Convert to fraction form
    211,162.68/316,846.62 = 92,818.71/x
  3. Step 3: Cross multiply
    211,162.68x = 316,846.62 × 92,818.71
  4. Step 4: Simplify right side
    211,162.68x = 29,409,294,536.26
  5. Step 5: Solve for x
    x = 29,409,294,536.26/211,162.68
  6. Step 6: Final answer
    x = 139,273.16

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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.