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Finding the Fourth Proportional to 91,493,906.40, 137,239,984.80 and 22,407,013.80

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Solution

The fourth proportional to 91,493,906.40, 137,239,984.80 and 22,407,013.80 is: 33,610,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,493,906.40 : 137,239,984.80 = 22,407,013.80 : x
  2. Step 2: Convert to fraction form
    91,493,906.40/137,239,984.80 = 22,407,013.80/x
  3. Step 3: Cross multiply
    91,493,906.40x = 137,239,984.80 × 22,407,013.80
  4. Step 4: Simplify right side
    91,493,906.40x = 3,075,138,233,325,390.50
  5. Step 5: Solve for x
    x = 3,075,138,233,325,390.50/91,493,906.40
  6. Step 6: Final answer
    x = 33,610,306.46

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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.