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Finding the Fourth Proportional to 66,440,110.80, 99,471,209.40 and 66,440,110.80

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Solution

The fourth proportional to 66,440,110.80, 99,471,209.40 and 66,440,110.80 is: 99,471,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,110.80 : 99,471,209.40 = 66,440,110.80 : x
  2. Step 2: Convert to fraction form
    66,440,110.80/99,471,209.40 = 66,440,110.80/x
  3. Step 3: Cross multiply
    66,440,110.80x = 99,471,209.40 × 66,440,110.80
  4. Step 4: Simplify right side
    66,440,110.80x = 6,608,878,173,946,002
  5. Step 5: Solve for x
    x = 6,608,878,173,946,002/66,440,110.80
  6. Step 6: Final answer
    x = 99,471,209.40

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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.