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Finding the Fourth Proportional to 66,267,059.80, 99,400,589.70 and 17,752,401.40

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Solution

The fourth proportional to 66,267,059.80, 99,400,589.70 and 17,752,401.40 is: 26,628,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267,059.80 : 99,400,589.70 = 17,752,401.40 : x
  2. Step 2: Convert to fraction form
    66,267,059.80/99,400,589.70 = 17,752,401.40/x
  3. Step 3: Cross multiply
    66,267,059.80x = 99,400,589.70 × 17,752,401.40
  4. Step 4: Simplify right side
    66,267,059.80x = 1,764,599,167,751,105.50
  5. Step 5: Solve for x
    x = 1,764,599,167,751,105.50/66,267,059.80
  6. Step 6: Final answer
    x = 26,628,602.10

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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.