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Finding the Fourth Proportional to 133,468.70, 199,911.45 and 103,652.60

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Solution

The fourth proportional to 133,468.70, 199,911.45 and 103,652.60 is: 155,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,468.70 : 199,911.45 = 103,652.60 : x
  2. Step 2: Convert to fraction form
    133,468.70/199,911.45 = 103,652.60/x
  3. Step 3: Cross multiply
    133,468.70x = 199,911.45 × 103,652.60
  4. Step 4: Simplify right side
    133,468.70x = 20,721,341,562.27
  5. Step 5: Solve for x
    x = 20,721,341,562.27/133,468.70
  6. Step 6: Final answer
    x = 155,252.44

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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.