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Finding the Fourth Proportional to 92,413.70, 127,530.72 and 52,127.36

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Solution

The fourth proportional to 92,413.70, 127,530.72 and 52,127.36 is: 71,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,413.70 : 127,530.72 = 52,127.36 : x
  2. Step 2: Convert to fraction form
    92,413.70/127,530.72 = 52,127.36/x
  3. Step 3: Cross multiply
    92,413.70x = 127,530.72 × 52,127.36
  4. Step 4: Simplify right side
    92,413.70x = 6,647,839,114.85
  5. Step 5: Solve for x
    x = 6,647,839,114.85/92,413.70
  6. Step 6: Final answer
    x = 71,935.65

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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.