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Finding the Fourth Proportional to 262,991,510.90, 394,487,266.35 and 109,747,546.10

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Solution

The fourth proportional to 262,991,510.90, 394,487,266.35 and 109,747,546.10 is: 164,621,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,991,510.90 : 394,487,266.35 = 109,747,546.10 : x
  2. Step 2: Convert to fraction form
    262,991,510.90/394,487,266.35 = 109,747,546.10/x
  3. Step 3: Cross multiply
    262,991,510.90x = 394,487,266.35 × 109,747,546.10
  4. Step 4: Simplify right side
    262,991,510.90x = 43,294,009,449,609,608
  5. Step 5: Solve for x
    x = 43,294,009,449,609,608/262,991,510.90
  6. Step 6: Final answer
    x = 164,621,319.15

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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.