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Finding the Fourth Proportional to 73,172.09, 109,746.70 and 23,245.63

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Solution

The fourth proportional to 73,172.09, 109,746.70 and 23,245.63 is: 34,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,172.09 : 109,746.70 = 23,245.63 : x
  2. Step 2: Convert to fraction form
    73,172.09/109,746.70 = 23,245.63/x
  3. Step 3: Cross multiply
    73,172.09x = 109,746.70 × 23,245.63
  4. Step 4: Simplify right side
    73,172.09x = 2,551,130,849.44
  5. Step 5: Solve for x
    x = 2,551,130,849.44/73,172.09
  6. Step 6: Final answer
    x = 34,864.81

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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.