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Finding the Fourth Proportional to 92,157.76, 127,177.96 and 51,872.12

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Solution

The fourth proportional to 92,157.76, 127,177.96 and 51,872.12 is: 71,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,157.76 : 127,177.96 = 51,872.12 : x
  2. Step 2: Convert to fraction form
    92,157.76/127,177.96 = 51,872.12/x
  3. Step 3: Cross multiply
    92,157.76x = 127,177.96 × 51,872.12
  4. Step 4: Simplify right side
    92,157.76x = 6,596,990,402.48
  5. Step 5: Solve for x
    x = 6,596,990,402.48/92,157.76
  6. Step 6: Final answer
    x = 71,583.67

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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.