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Finding the Fourth Proportional to 73,491.57, 101,415.42 and 43,278.16

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Solution

The fourth proportional to 73,491.57, 101,415.42 and 43,278.16 is: 59,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,491.57 : 101,415.42 = 43,278.16 : x
  2. Step 2: Convert to fraction form
    73,491.57/101,415.42 = 43,278.16/x
  3. Step 3: Cross multiply
    73,491.57x = 101,415.42 × 43,278.16
  4. Step 4: Simplify right side
    73,491.57x = 4,389,072,773.23
  5. Step 5: Solve for x
    x = 4,389,072,773.23/73,491.57
  6. Step 6: Final answer
    x = 59,722.13

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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.