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Finding the Fourth Proportional to 308,005,071, 425,046,997.98 and 177,624,879

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Solution

The fourth proportional to 308,005,071, 425,046,997.98 and 177,624,879 is: 245,122,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,005,071 : 425,046,997.98 = 177,624,879 : x
  2. Step 2: Convert to fraction form
    308,005,071/425,046,997.98 = 177,624,879/x
  3. Step 3: Cross multiply
    308,005,071x = 425,046,997.98 × 177,624,879
  4. Step 4: Simplify right side
    308,005,071x = 75,498,921,585,510,752
  5. Step 5: Solve for x
    x = 75,498,921,585,510,752/308,005,071
  6. Step 6: Final answer
    x = 245,122,333.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.