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Finding the Fourth Proportional to 268,953.93, 403,314.26 and 91,413.27

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Solution

The fourth proportional to 268,953.93, 403,314.26 and 91,413.27 is: 137,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,953.93 : 403,314.26 = 91,413.27 : x
  2. Step 2: Convert to fraction form
    268,953.93/403,314.26 = 91,413.27/x
  3. Step 3: Cross multiply
    268,953.93x = 403,314.26 × 91,413.27
  4. Step 4: Simplify right side
    268,953.93x = 36,868,274,887.16
  5. Step 5: Solve for x
    x = 36,868,274,887.16/268,953.93
  6. Step 6: Final answer
    x = 137,080.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.