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Finding the Fourth Proportional to 277,792,889.92, 416,648,773.80 and 81,003,422.32

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Solution

The fourth proportional to 277,792,889.92, 416,648,773.80 and 81,003,422.32 is: 121,493,306.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,792,889.92 : 416,648,773.80 = 81,003,422.32 : x
  2. Step 2: Convert to fraction form
    277,792,889.92/416,648,773.80 = 81,003,422.32/x
  3. Step 3: Cross multiply
    277,792,889.92x = 416,648,773.80 × 81,003,422.32
  4. Step 4: Simplify right side
    277,792,889.92x = 33,749,976,583,231,548
  5. Step 5: Solve for x
    x = 33,749,976,583,231,548/277,792,889.92
  6. Step 6: Final answer
    x = 121,493,306.01

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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.