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Finding the Fourth Proportional to 92,521, 127,679 and 50,079.88

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Solution

The fourth proportional to 92,521, 127,679 and 50,079.88 is: 69,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,521 : 127,679 = 50,079.88 : x
  2. Step 2: Convert to fraction form
    92,521/127,679 = 50,079.88/x
  3. Step 3: Cross multiply
    92,521x = 127,679 × 50,079.88
  4. Step 4: Simplify right side
    92,521x = 6,394,148,998.52
  5. Step 5: Solve for x
    x = 6,394,148,998.52/92,521
  6. Step 6: Final answer
    x = 69,110.25

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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.