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Finding the Fourth Proportional to 67,793,076.80, 101,689,615.20 and 40,583,297.60

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Solution

The fourth proportional to 67,793,076.80, 101,689,615.20 and 40,583,297.60 is: 60,874,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,793,076.80 : 101,689,615.20 = 40,583,297.60 : x
  2. Step 2: Convert to fraction form
    67,793,076.80/101,689,615.20 = 40,583,297.60/x
  3. Step 3: Cross multiply
    67,793,076.80x = 101,689,615.20 × 40,583,297.60
  4. Step 4: Simplify right side
    67,793,076.80x = 4,126,899,916,491,084
  5. Step 5: Solve for x
    x = 4,126,899,916,491,084/67,793,076.80
  6. Step 6: Final answer
    x = 60,874,946.40

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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.