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Finding the Fourth Proportional to 201,061.70, 301,582.95 and 67,928.90

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Solution

The fourth proportional to 201,061.70, 301,582.95 and 67,928.90 is: 101,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,061.70 : 301,582.95 = 67,928.90 : x
  2. Step 2: Convert to fraction form
    201,061.70/301,582.95 = 67,928.90/x
  3. Step 3: Cross multiply
    201,061.70x = 301,582.95 × 67,928.90
  4. Step 4: Simplify right side
    201,061.70x = 20,486,198,052.26
  5. Step 5: Solve for x
    x = 20,486,198,052.26/201,061.70
  6. Step 6: Final answer
    x = 101,890.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.