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Finding the Fourth Proportional to 92,064.28, 127,053.30 and 51,790.72

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Solution

The fourth proportional to 92,064.28, 127,053.30 and 51,790.72 is: 71,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,064.28 : 127,053.30 = 51,790.72 : x
  2. Step 2: Convert to fraction form
    92,064.28/127,053.30 = 51,790.72/x
  3. Step 3: Cross multiply
    92,064.28x = 127,053.30 × 51,790.72
  4. Step 4: Simplify right side
    92,064.28x = 6,580,181,885.38
  5. Step 5: Solve for x
    x = 6,580,181,885.38/92,064.28
  6. Step 6: Final answer
    x = 71,473.78

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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.