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Finding the Fourth Proportional to 75,988,772.80, 113,974,411.20 and 22,136,084.80

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Solution

The fourth proportional to 75,988,772.80, 113,974,411.20 and 22,136,084.80 is: 33,201,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,988,772.80 : 113,974,411.20 = 22,136,084.80 : x
  2. Step 2: Convert to fraction form
    75,988,772.80/113,974,411.20 = 22,136,084.80/x
  3. Step 3: Cross multiply
    75,988,772.80x = 113,974,411.20 × 22,136,084.80
  4. Step 4: Simplify right side
    75,988,772.80x = 2,522,947,231,353,270
  5. Step 5: Solve for x
    x = 2,522,947,231,353,270/75,988,772.80
  6. Step 6: Final answer
    x = 33,201,578.84

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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.