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Finding the Fourth Proportional to 73,243.53, 109,865.34 and 26,485.47

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Solution

The fourth proportional to 73,243.53, 109,865.34 and 26,485.47 is: 39,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,243.53 : 109,865.34 = 26,485.47 : x
  2. Step 2: Convert to fraction form
    73,243.53/109,865.34 = 26,485.47/x
  3. Step 3: Cross multiply
    73,243.53x = 109,865.34 × 26,485.47
  4. Step 4: Simplify right side
    73,243.53x = 2,909,835,166.61
  5. Step 5: Solve for x
    x = 2,909,835,166.61/73,243.53
  6. Step 6: Final answer
    x = 39,728.22

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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.