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Finding the Fourth Proportional to 107,895,627.20, 161,843,440.80 and 73,458,250.40

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Solution

The fourth proportional to 107,895,627.20, 161,843,440.80 and 73,458,250.40 is: 110,187,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,895,627.20 : 161,843,440.80 = 73,458,250.40 : x
  2. Step 2: Convert to fraction form
    107,895,627.20/161,843,440.80 = 73,458,250.40/x
  3. Step 3: Cross multiply
    107,895,627.20x = 161,843,440.80 × 73,458,250.40
  4. Step 4: Simplify right side
    107,895,627.20x = 11,888,735,999,883,978
  5. Step 5: Solve for x
    x = 11,888,735,999,883,978/107,895,627.20
  6. Step 6: Final answer
    x = 110,187,375.60

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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.