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Finding the Fourth Proportional to 92,264.25, 137,890.87 and 67,356.75

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Solution

The fourth proportional to 92,264.25, 137,890.87 and 67,356.75 is: 100,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,264.25 : 137,890.87 = 67,356.75 : x
  2. Step 2: Convert to fraction form
    92,264.25/137,890.87 = 67,356.75/x
  3. Step 3: Cross multiply
    92,264.25x = 137,890.87 × 67,356.75
  4. Step 4: Simplify right side
    92,264.25x = 9,287,880,857.87
  5. Step 5: Solve for x
    x = 9,287,880,857.87/92,264.25
  6. Step 6: Final answer
    x = 100,666.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.