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Finding the Fourth Proportional to 137,745.60, 206,598.78 and 44,239.20

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Solution

The fourth proportional to 137,745.60, 206,598.78 and 44,239.20 is: 66,352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,745.60 : 206,598.78 = 44,239.20 : x
  2. Step 2: Convert to fraction form
    137,745.60/206,598.78 = 44,239.20/x
  3. Step 3: Cross multiply
    137,745.60x = 206,598.78 × 44,239.20
  4. Step 4: Simplify right side
    137,745.60x = 9,139,764,748.18
  5. Step 5: Solve for x
    x = 9,139,764,748.18/137,745.60
  6. Step 6: Final answer
    x = 66,352.50

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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.