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Finding the Fourth Proportional to 45,834,906.81, 68,751,361.47 and 21,560,378.67

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Solution

The fourth proportional to 45,834,906.81, 68,751,361.47 and 21,560,378.67 is: 32,340,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,834,906.81 : 68,751,361.47 = 21,560,378.67 : x
  2. Step 2: Convert to fraction form
    45,834,906.81/68,751,361.47 = 21,560,378.67/x
  3. Step 3: Cross multiply
    45,834,906.81x = 68,751,361.47 × 21,560,378.67
  4. Step 4: Simplify right side
    45,834,906.81x = 1,482,305,387,371,248
  5. Step 5: Solve for x
    x = 1,482,305,387,371,248/45,834,906.81
  6. Step 6: Final answer
    x = 32,340,098.20

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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.