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Finding the Fourth Proportional to 136,664,652.60, 205,014,960.90 and 50,463,610.20

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Solution

The fourth proportional to 136,664,652.60, 205,014,960.90 and 50,463,610.20 is: 75,702,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664,652.60 : 205,014,960.90 = 50,463,610.20 : x
  2. Step 2: Convert to fraction form
    136,664,652.60/205,014,960.90 = 50,463,610.20/x
  3. Step 3: Cross multiply
    136,664,652.60x = 205,014,960.90 × 50,463,610.20
  4. Step 4: Simplify right side
    136,664,652.60x = 10,345,795,072,025,842
  5. Step 5: Solve for x
    x = 10,345,795,072,025,842/136,664,652.60
  6. Step 6: Final answer
    x = 75,702,055.18

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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.