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Finding the Fourth Proportional to 92,148.97, 127,172.01 and 51,866.59

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Solution

The fourth proportional to 92,148.97, 127,172.01 and 51,866.59 is: 71,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,148.97 : 127,172.01 = 51,866.59 : x
  2. Step 2: Convert to fraction form
    92,148.97/127,172.01 = 51,866.59/x
  3. Step 3: Cross multiply
    92,148.97x = 127,172.01 × 51,866.59
  4. Step 4: Simplify right side
    92,148.97x = 6,595,978,502.15
  5. Step 5: Solve for x
    x = 6,595,978,502.15/92,148.97
  6. Step 6: Final answer
    x = 71,579.51

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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.