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Finding the Fourth Proportional to 67,095.60, 100,708.20 and 40,851.60

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Solution

The fourth proportional to 67,095.60, 100,708.20 and 40,851.60 is: 61,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,095.60 : 100,708.20 = 40,851.60 : x
  2. Step 2: Convert to fraction form
    67,095.60/100,708.20 = 40,851.60/x
  3. Step 3: Cross multiply
    67,095.60x = 100,708.20 × 40,851.60
  4. Step 4: Simplify right side
    67,095.60x = 4,114,091,103.12
  5. Step 5: Solve for x
    x = 4,114,091,103.12/67,095.60
  6. Step 6: Final answer
    x = 61,316.85

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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.