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Finding the Fourth Proportional to 99,644,936.80, 149,530,390.80 and 58,704,296.80

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Solution

The fourth proportional to 99,644,936.80, 149,530,390.80 and 58,704,296.80 is: 88,093,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,644,936.80 : 149,530,390.80 = 58,704,296.80 : x
  2. Step 2: Convert to fraction form
    99,644,936.80/149,530,390.80 = 58,704,296.80/x
  3. Step 3: Cross multiply
    99,644,936.80x = 149,530,390.80 × 58,704,296.80
  4. Step 4: Simplify right side
    99,644,936.80x = 8,778,076,442,143,190
  5. Step 5: Solve for x
    x = 8,778,076,442,143,190/99,644,936.80
  6. Step 6: Final answer
    x = 88,093,552.21

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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.