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Finding the Fourth Proportional to 70,980,313.20, 106,470,469.80 and 25,536,202.80

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Solution

The fourth proportional to 70,980,313.20, 106,470,469.80 and 25,536,202.80 is: 38,304,304.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,980,313.20 : 106,470,469.80 = 25,536,202.80 : x
  2. Step 2: Convert to fraction form
    70,980,313.20/106,470,469.80 = 25,536,202.80/x
  3. Step 3: Cross multiply
    70,980,313.20x = 106,470,469.80 × 25,536,202.80
  4. Step 4: Simplify right side
    70,980,313.20x = 2,718,851,509,024,075.50
  5. Step 5: Solve for x
    x = 2,718,851,509,024,075.50/70,980,313.20
  6. Step 6: Final answer
    x = 38,304,304.20

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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.