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Finding the Fourth Proportional to 92,745.51, 127,849.28 and 72,567.36

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Solution

The fourth proportional to 92,745.51, 127,849.28 and 72,567.36 is: 100,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.51 : 127,849.28 = 72,567.36 : x
  2. Step 2: Convert to fraction form
    92,745.51/127,849.28 = 72,567.36/x
  3. Step 3: Cross multiply
    92,745.51x = 127,849.28 × 72,567.36
  4. Step 4: Simplify right side
    92,745.51x = 9,277,684,364.66
  5. Step 5: Solve for x
    x = 9,277,684,364.66/92,745.51
  6. Step 6: Final answer
    x = 100,033.78

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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.