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Finding the Fourth Proportional to 92,305.71, 138,461.49 and 29,126.43

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Solution

The fourth proportional to 92,305.71, 138,461.49 and 29,126.43 is: 43,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,305.71 : 138,461.49 = 29,126.43 : x
  2. Step 2: Convert to fraction form
    92,305.71/138,461.49 = 29,126.43/x
  3. Step 3: Cross multiply
    92,305.71x = 138,461.49 × 29,126.43
  4. Step 4: Simplify right side
    92,305.71x = 4,032,888,896.18
  5. Step 5: Solve for x
    x = 4,032,888,896.18/92,305.71
  6. Step 6: Final answer
    x = 43,690.57

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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.