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Finding the Fourth Proportional to 93,418.80, 140,176.80 and 40,833.60

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Solution

The fourth proportional to 93,418.80, 140,176.80 and 40,833.60 is: 61,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,418.80 : 140,176.80 = 40,833.60 : x
  2. Step 2: Convert to fraction form
    93,418.80/140,176.80 = 40,833.60/x
  3. Step 3: Cross multiply
    93,418.80x = 140,176.80 × 40,833.60
  4. Step 4: Simplify right side
    93,418.80x = 5,723,923,380.48
  5. Step 5: Solve for x
    x = 5,723,923,380.48/93,418.80
  6. Step 6: Final answer
    x = 61,271.64

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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.