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Finding the Fourth Proportional to 124,638.30, 186,957.45 and 50,766.30

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Solution

The fourth proportional to 124,638.30, 186,957.45 and 50,766.30 is: 76,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638.30 : 186,957.45 = 50,766.30 : x
  2. Step 2: Convert to fraction form
    124,638.30/186,957.45 = 50,766.30/x
  3. Step 3: Cross multiply
    124,638.30x = 186,957.45 × 50,766.30
  4. Step 4: Simplify right side
    124,638.30x = 9,491,137,993.94
  5. Step 5: Solve for x
    x = 9,491,137,993.94/124,638.30
  6. Step 6: Final answer
    x = 76,149.45

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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.