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Finding the Fourth Proportional to 183,972,440.72, 275,958,661.32 and 74,772,027.20

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Solution

The fourth proportional to 183,972,440.72, 275,958,661.32 and 74,772,027.20 is: 112,158,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,972,440.72 : 275,958,661.32 = 74,772,027.20 : x
  2. Step 2: Convert to fraction form
    183,972,440.72/275,958,661.32 = 74,772,027.20/x
  3. Step 3: Cross multiply
    183,972,440.72x = 275,958,661.32 × 74,772,027.20
  4. Step 4: Simplify right side
    183,972,440.72x = 20,633,988,530,294,628
  5. Step 5: Solve for x
    x = 20,633,988,530,294,628/183,972,440.72
  6. Step 6: Final answer
    x = 112,158,040.90

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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.