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Finding the Fourth Proportional to 73,201.80, 109,802.70 and 44,661.45

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Solution

The fourth proportional to 73,201.80, 109,802.70 and 44,661.45 is: 66,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,201.80 : 109,802.70 = 44,661.45 : x
  2. Step 2: Convert to fraction form
    73,201.80/109,802.70 = 44,661.45/x
  3. Step 3: Cross multiply
    73,201.80x = 109,802.70 × 44,661.45
  4. Step 4: Simplify right side
    73,201.80x = 4,903,947,795.92
  5. Step 5: Solve for x
    x = 4,903,947,795.92/73,201.80
  6. Step 6: Final answer
    x = 66,992.18

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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.