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Finding the Fourth Proportional to 73,293.94, 109,754.83 and 61,416.48

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Solution

The fourth proportional to 73,293.94, 109,754.83 and 61,416.48 is: 91,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,293.94 : 109,754.83 = 61,416.48 : x
  2. Step 2: Convert to fraction form
    73,293.94/109,754.83 = 61,416.48/x
  3. Step 3: Cross multiply
    73,293.94x = 109,754.83 × 61,416.48
  4. Step 4: Simplify right side
    73,293.94x = 6,740,754,986.79
  5. Step 5: Solve for x
    x = 6,740,754,986.79/73,293.94
  6. Step 6: Final answer
    x = 91,968.79

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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.