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Finding the Fourth Proportional to 69,030.56, 95,262.16 and 39,222.56

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Solution

The fourth proportional to 69,030.56, 95,262.16 and 39,222.56 is: 54,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.56 : 95,262.16 = 39,222.56 : x
  2. Step 2: Convert to fraction form
    69,030.56/95,262.16 = 39,222.56/x
  3. Step 3: Cross multiply
    69,030.56x = 95,262.16 × 39,222.56
  4. Step 4: Simplify right side
    69,030.56x = 3,736,425,786.33
  5. Step 5: Solve for x
    x = 3,736,425,786.33/69,030.56
  6. Step 6: Final answer
    x = 54,127.13

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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.