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Finding the Fourth Proportional to 72,367.16, 108,409.44 and 49,873.82

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Solution

The fourth proportional to 72,367.16, 108,409.44 and 49,873.82 is: 74,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,367.16 : 108,409.44 = 49,873.82 : x
  2. Step 2: Convert to fraction form
    72,367.16/108,409.44 = 49,873.82/x
  3. Step 3: Cross multiply
    72,367.16x = 108,409.44 × 49,873.82
  4. Step 4: Simplify right side
    72,367.16x = 5,406,792,896.86
  5. Step 5: Solve for x
    x = 5,406,792,896.86/72,367.16
  6. Step 6: Final answer
    x = 74,713.35

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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.