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Finding the Fourth Proportional to 201,079.80, 301,569.96 and 67,957.20

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Solution

The fourth proportional to 201,079.80, 301,569.96 and 67,957.20 is: 101,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,079.80 : 301,569.96 = 67,957.20 : x
  2. Step 2: Convert to fraction form
    201,079.80/301,569.96 = 67,957.20/x
  3. Step 3: Cross multiply
    201,079.80x = 301,569.96 × 67,957.20
  4. Step 4: Simplify right side
    201,079.80x = 20,493,850,085.71
  5. Step 5: Solve for x
    x = 20,493,850,085.71/201,079.80
  6. Step 6: Final answer
    x = 101,918.99

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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.