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Finding the Fourth Proportional to 92,078.93, 127,068 and 51,242.37

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Solution

The fourth proportional to 92,078.93, 127,068 and 51,242.37 is: 70,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,078.93 : 127,068 = 51,242.37 : x
  2. Step 2: Convert to fraction form
    92,078.93/127,068 = 51,242.37/x
  3. Step 3: Cross multiply
    92,078.93x = 127,068 × 51,242.37
  4. Step 4: Simplify right side
    92,078.93x = 6,511,264,835.82
  5. Step 5: Solve for x
    x = 6,511,264,835.82/92,078.93
  6. Step 6: Final answer
    x = 70,713.95

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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.