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Finding the Fourth Proportional to 92,689.41, 127,866.29 and 54,936.93

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Solution

The fourth proportional to 92,689.41, 127,866.29 and 54,936.93 is: 75,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,689.41 : 127,866.29 = 54,936.93 : x
  2. Step 2: Convert to fraction form
    92,689.41/127,866.29 = 54,936.93/x
  3. Step 3: Cross multiply
    92,689.41x = 127,866.29 × 54,936.93
  4. Step 4: Simplify right side
    92,689.41x = 7,024,581,148.41
  5. Step 5: Solve for x
    x = 7,024,581,148.41/92,689.41
  6. Step 6: Final answer
    x = 75,786.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.