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Finding the Fourth Proportional to 92,490.72, 127,637.34 and 50,049.28

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Solution

The fourth proportional to 92,490.72, 127,637.34 and 50,049.28 is: 69,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,490.72 : 127,637.34 = 50,049.28 : x
  2. Step 2: Convert to fraction form
    92,490.72/127,637.34 = 50,049.28/x
  3. Step 3: Cross multiply
    92,490.72x = 127,637.34 × 50,049.28
  4. Step 4: Simplify right side
    92,490.72x = 6,388,156,968.12
  5. Step 5: Solve for x
    x = 6,388,156,968.12/92,490.72
  6. Step 6: Final answer
    x = 69,068.09

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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.