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Finding the Fourth Proportional to 92,157.76, 127,177.95 and 51,872.11

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Solution

The fourth proportional to 92,157.76, 127,177.95 and 51,872.11 is: 71,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,157.76 : 127,177.95 = 51,872.11 : x
  2. Step 2: Convert to fraction form
    92,157.76/127,177.95 = 51,872.11/x
  3. Step 3: Cross multiply
    92,157.76x = 127,177.95 × 51,872.11
  4. Step 4: Simplify right side
    92,157.76x = 6,596,988,611.97
  5. Step 5: Solve for x
    x = 6,596,988,611.97/92,157.76
  6. Step 6: Final answer
    x = 71,583.65

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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.