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Finding the Fourth Proportional to 73,355.79, 101,231.06 and 39,821.79

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Solution

The fourth proportional to 73,355.79, 101,231.06 and 39,821.79 is: 54,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,355.79 : 101,231.06 = 39,821.79 : x
  2. Step 2: Convert to fraction form
    73,355.79/101,231.06 = 39,821.79/x
  3. Step 3: Cross multiply
    73,355.79x = 101,231.06 × 39,821.79
  4. Step 4: Simplify right side
    73,355.79x = 4,031,201,813.69
  5. Step 5: Solve for x
    x = 4,031,201,813.69/73,355.79
  6. Step 6: Final answer
    x = 54,954.11

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1.5x scale

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.