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Finding the Fourth Proportional to 468,998,710.92, 703,504,053.32 and 123,949,356.75

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Solution

The fourth proportional to 468,998,710.92, 703,504,053.32 and 123,949,356.75 is: 185,925,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,998,710.92 : 703,504,053.32 = 123,949,356.75 : x
  2. Step 2: Convert to fraction form
    468,998,710.92/703,504,053.32 = 123,949,356.75/x
  3. Step 3: Cross multiply
    468,998,710.92x = 703,504,053.32 × 123,949,356.75
  4. Step 4: Simplify right side
    468,998,710.92x = 87,198,874,879,411,968
  5. Step 5: Solve for x
    x = 87,198,874,879,411,968/468,998,710.92
  6. Step 6: Final answer
    x = 185,925,617.38

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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.