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Finding the Fourth Proportional to 73,693.48, 101,698.98 and 40,161.64

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Solution

The fourth proportional to 73,693.48, 101,698.98 and 40,161.64 is: 55,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,693.48 : 101,698.98 = 40,161.64 : x
  2. Step 2: Convert to fraction form
    73,693.48/101,698.98 = 40,161.64/x
  3. Step 3: Cross multiply
    73,693.48x = 101,698.98 × 40,161.64
  4. Step 4: Simplify right side
    73,693.48x = 4,084,397,823.13
  5. Step 5: Solve for x
    x = 4,084,397,823.13/73,693.48
  6. Step 6: Final answer
    x = 55,424.14

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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.