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Finding the Fourth Proportional to 73,217.75, 101,040.50 and 39,683.75

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Solution

The fourth proportional to 73,217.75, 101,040.50 and 39,683.75 is: 54,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,217.75 : 101,040.50 = 39,683.75 : x
  2. Step 2: Convert to fraction form
    73,217.75/101,040.50 = 39,683.75/x
  3. Step 3: Cross multiply
    73,217.75x = 101,040.50 × 39,683.75
  4. Step 4: Simplify right side
    73,217.75x = 4,009,665,941.88
  5. Step 5: Solve for x
    x = 4,009,665,941.88/73,217.75
  6. Step 6: Final answer
    x = 54,763.58

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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.