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Finding the Fourth Proportional to 73,678.80, 101,688.98 and 43,471.54

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Solution

The fourth proportional to 73,678.80, 101,688.98 and 43,471.54 is: 59,997.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,678.80 : 101,688.98 = 43,471.54 : x
  2. Step 2: Convert to fraction form
    73,678.80/101,688.98 = 43,471.54/x
  3. Step 3: Cross multiply
    73,678.80x = 101,688.98 × 43,471.54
  4. Step 4: Simplify right side
    73,678.80x = 4,420,576,561.63
  5. Step 5: Solve for x
    x = 4,420,576,561.63/73,678.80
  6. Step 6: Final answer
    x = 59,997.94

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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.