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Finding the Fourth Proportional to 121,321,702, 181,982,553 and 40,542,670

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Solution

The fourth proportional to 121,321,702, 181,982,553 and 40,542,670 is: 60,814,005

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,702 : 181,982,553 = 40,542,670 : x
  2. Step 2: Convert to fraction form
    121,321,702/181,982,553 = 40,542,670/x
  3. Step 3: Cross multiply
    121,321,702x = 181,982,553 × 40,542,670
  4. Step 4: Simplify right side
    121,321,702x = 7,378,058,592,036,510
  5. Step 5: Solve for x
    x = 7,378,058,592,036,510/121,321,702
  6. Step 6: Final answer
    x = 60,814,005

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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.