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Finding the Fourth Proportional to 72,930.60, 109,395.90 and 41,740.20

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Solution

The fourth proportional to 72,930.60, 109,395.90 and 41,740.20 is: 62,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,930.60 : 109,395.90 = 41,740.20 : x
  2. Step 2: Convert to fraction form
    72,930.60/109,395.90 = 41,740.20/x
  3. Step 3: Cross multiply
    72,930.60x = 109,395.90 × 41,740.20
  4. Step 4: Simplify right side
    72,930.60x = 4,566,206,745.18
  5. Step 5: Solve for x
    x = 4,566,206,745.18/72,930.60
  6. Step 6: Final answer
    x = 62,610.30

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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.