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Finding the Fourth Proportional to 210,622.94, 316,022.31 and 92,379.14

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Solution

The fourth proportional to 210,622.94, 316,022.31 and 92,379.14 is: 138,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,622.94 : 316,022.31 = 92,379.14 : x
  2. Step 2: Convert to fraction form
    210,622.94/316,022.31 = 92,379.14/x
  3. Step 3: Cross multiply
    210,622.94x = 316,022.31 × 92,379.14
  4. Step 4: Simplify right side
    210,622.94x = 29,193,869,218.61
  5. Step 5: Solve for x
    x = 29,193,869,218.61/210,622.94
  6. Step 6: Final answer
    x = 138,607.26

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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.