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Finding the Fourth Proportional to 92,758.69, 127,947.36 and 62,133.40

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Solution

The fourth proportional to 92,758.69, 127,947.36 and 62,133.40 is: 85,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,758.69 : 127,947.36 = 62,133.40 : x
  2. Step 2: Convert to fraction form
    92,758.69/127,947.36 = 62,133.40/x
  3. Step 3: Cross multiply
    92,758.69x = 127,947.36 × 62,133.40
  4. Step 4: Simplify right side
    92,758.69x = 7,949,804,497.82
  5. Step 5: Solve for x
    x = 7,949,804,497.82/92,758.69
  6. Step 6: Final answer
    x = 85,704.15

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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.