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Finding the Fourth Proportional to 73,104.85, 100,885.01 and 39,570.85

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Solution

The fourth proportional to 73,104.85, 100,885.01 and 39,570.85 is: 54,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.85 : 100,885.01 = 39,570.85 : x
  2. Step 2: Convert to fraction form
    73,104.85/100,885.01 = 39,570.85/x
  3. Step 3: Cross multiply
    73,104.85x = 100,885.01 × 39,570.85
  4. Step 4: Simplify right side
    73,104.85x = 3,992,105,597.96
  5. Step 5: Solve for x
    x = 3,992,105,597.96/73,104.85
  6. Step 6: Final answer
    x = 54,607.94

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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.