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Finding the Fourth Proportional to 73,222.88, 101,047.64 and 39,688.88

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Solution

The fourth proportional to 73,222.88, 101,047.64 and 39,688.88 is: 54,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,222.88 : 101,047.64 = 39,688.88 : x
  2. Step 2: Convert to fraction form
    73,222.88/101,047.64 = 39,688.88/x
  3. Step 3: Cross multiply
    73,222.88x = 101,047.64 × 39,688.88
  4. Step 4: Simplify right side
    73,222.88x = 4,010,466,954.56
  5. Step 5: Solve for x
    x = 4,010,466,954.56/73,222.88
  6. Step 6: Final answer
    x = 54,770.68

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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.