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Finding the Fourth Proportional to 212,624,190.80, 298,480,082.80 and 212,624,190.80

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Solution

The fourth proportional to 212,624,190.80, 298,480,082.80 and 212,624,190.80 is: 298,480,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,624,190.80 : 298,480,082.80 = 212,624,190.80 : x
  2. Step 2: Convert to fraction form
    212,624,190.80/298,480,082.80 = 212,624,190.80/x
  3. Step 3: Cross multiply
    212,624,190.80x = 298,480,082.80 × 212,624,190.80
  4. Step 4: Simplify right side
    212,624,190.80x = 63,464,086,075,267,008
  5. Step 5: Solve for x
    x = 63,464,086,075,267,008/212,624,190.80
  6. Step 6: Final answer
    x = 298,480,082.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.