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Finding the Fourth Proportional to 88,945.86, 133,286.76 and 49,448.64

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Solution

The fourth proportional to 88,945.86, 133,286.76 and 49,448.64 is: 74,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,945.86 : 133,286.76 = 49,448.64 : x
  2. Step 2: Convert to fraction form
    88,945.86/133,286.76 = 49,448.64/x
  3. Step 3: Cross multiply
    88,945.86x = 133,286.76 × 49,448.64
  4. Step 4: Simplify right side
    88,945.86x = 6,590,849,012.01
  5. Step 5: Solve for x
    x = 6,590,849,012.01/88,945.86
  6. Step 6: Final answer
    x = 74,099.56

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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.