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Finding the Fourth Proportional to 92,065.28, 127,054.68 and 51,791.72

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Solution

The fourth proportional to 92,065.28, 127,054.68 and 51,791.72 is: 71,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,065.28 : 127,054.68 = 51,791.72 : x
  2. Step 2: Convert to fraction form
    92,065.28/127,054.68 = 51,791.72/x
  3. Step 3: Cross multiply
    92,065.28x = 127,054.68 × 51,791.72
  4. Step 4: Simplify right side
    92,065.28x = 6,580,380,411.25
  5. Step 5: Solve for x
    x = 6,580,380,411.25/92,065.28
  6. Step 6: Final answer
    x = 71,475.16

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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.