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Finding the Fourth Proportional to 274,545,486.75, 411,833,793.85 and 87,815,831.37

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Solution

The fourth proportional to 274,545,486.75, 411,833,793.85 and 87,815,831.37 is: 131,728,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,545,486.75 : 411,833,793.85 = 87,815,831.37 : x
  2. Step 2: Convert to fraction form
    274,545,486.75/411,833,793.85 = 87,815,831.37/x
  3. Step 3: Cross multiply
    274,545,486.75x = 411,833,793.85 × 87,815,831.37
  4. Step 4: Simplify right side
    274,545,486.75x = 36,165,526,990,920,232
  5. Step 5: Solve for x
    x = 36,165,526,990,920,232/274,545,486.75
  6. Step 6: Final answer
    x = 131,728,725.24

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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.