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Finding the Fourth Proportional to 201,250.55, 301,930.27 and 68,130.82

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Solution

The fourth proportional to 201,250.55, 301,930.27 and 68,130.82 is: 102,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,250.55 : 301,930.27 = 68,130.82 : x
  2. Step 2: Convert to fraction form
    201,250.55/301,930.27 = 68,130.82/x
  3. Step 3: Cross multiply
    201,250.55x = 301,930.27 × 68,130.82
  4. Step 4: Simplify right side
    201,250.55x = 20,570,755,952.77
  5. Step 5: Solve for x
    x = 20,570,755,952.77/201,250.55
  6. Step 6: Final answer
    x = 102,214.66

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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.