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Finding the Fourth Proportional to 73,640.86, 101,606.74 and 43,423.81

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Solution

The fourth proportional to 73,640.86, 101,606.74 and 43,423.81 is: 59,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,640.86 : 101,606.74 = 43,423.81 : x
  2. Step 2: Convert to fraction form
    73,640.86/101,606.74 = 43,423.81/x
  3. Step 3: Cross multiply
    73,640.86x = 101,606.74 × 43,423.81
  4. Step 4: Simplify right side
    73,640.86x = 4,412,151,772.48
  5. Step 5: Solve for x
    x = 4,412,151,772.48/73,640.86
  6. Step 6: Final answer
    x = 59,914.45

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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.