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Finding the Fourth Proportional to 64,446.48, 88,912.08 and 49,323.60

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Solution

The fourth proportional to 64,446.48, 88,912.08 and 49,323.60 is: 68,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,446.48 : 88,912.08 = 49,323.60 : x
  2. Step 2: Convert to fraction form
    64,446.48/88,912.08 = 49,323.60/x
  3. Step 3: Cross multiply
    64,446.48x = 88,912.08 × 49,323.60
  4. Step 4: Simplify right side
    64,446.48x = 4,385,463,869.09
  5. Step 5: Solve for x
    x = 4,385,463,869.09/64,446.48
  6. Step 6: Final answer
    x = 68,048.15

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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.