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Finding the Fourth Proportional to 67,607,996.80, 101,411,995.20 and 40,734,140.80

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Solution

The fourth proportional to 67,607,996.80, 101,411,995.20 and 40,734,140.80 is: 61,101,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,607,996.80 : 101,411,995.20 = 40,734,140.80 : x
  2. Step 2: Convert to fraction form
    67,607,996.80/101,411,995.20 = 40,734,140.80/x
  3. Step 3: Cross multiply
    67,607,996.80x = 101,411,995.20 × 40,734,140.80
  4. Step 4: Simplify right side
    67,607,996.80x = 4,130,930,491,285,724
  5. Step 5: Solve for x
    x = 4,130,930,491,285,724/67,607,996.80
  6. Step 6: Final answer
    x = 61,101,211.20

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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.