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Finding the Fourth Proportional to 174,006.40, 260,815.20 and 74,149.60

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Solution

The fourth proportional to 174,006.40, 260,815.20 and 74,149.60 is: 111,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,006.40 : 260,815.20 = 74,149.60 : x
  2. Step 2: Convert to fraction form
    174,006.40/260,815.20 = 74,149.60/x
  3. Step 3: Cross multiply
    174,006.40x = 260,815.20 × 74,149.60
  4. Step 4: Simplify right side
    174,006.40x = 19,339,342,753.92
  5. Step 5: Solve for x
    x = 19,339,342,753.92/174,006.40
  6. Step 6: Final answer
    x = 111,141.56

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1.5x scale

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.