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Finding the Fourth Proportional to 99,642,260.80, 149,526,376.80 and 58,701,620.80

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Solution

The fourth proportional to 99,642,260.80, 149,526,376.80 and 58,701,620.80 is: 88,089,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,260.80 : 149,526,376.80 = 58,701,620.80 : x
  2. Step 2: Convert to fraction form
    99,642,260.80/149,526,376.80 = 58,701,620.80/x
  3. Step 3: Cross multiply
    99,642,260.80x = 149,526,376.80 × 58,701,620.80
  4. Step 4: Simplify right side
    99,642,260.80x = 8,777,440,670,511,518
  5. Step 5: Solve for x
    x = 8,777,440,670,511,518/99,642,260.80
  6. Step 6: Final answer
    x = 88,089,537.51

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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.