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Finding the Fourth Proportional to 201,113.20, 301,580.70 and 67,957.30

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Solution

The fourth proportional to 201,113.20, 301,580.70 and 67,957.30 is: 101,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,113.20 : 301,580.70 = 67,957.30 : x
  2. Step 2: Convert to fraction form
    201,113.20/301,580.70 = 67,957.30/x
  3. Step 3: Cross multiply
    201,113.20x = 301,580.70 × 67,957.30
  4. Step 4: Simplify right side
    201,113.20x = 20,494,610,104.11
  5. Step 5: Solve for x
    x = 20,494,610,104.11/201,113.20
  6. Step 6: Final answer
    x = 101,905.84

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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.