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Finding the Fourth Proportional to 323,310,480.30, 484,965,720.45 and 159,626,652.30

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Solution

The fourth proportional to 323,310,480.30, 484,965,720.45 and 159,626,652.30 is: 239,439,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,310,480.30 : 484,965,720.45 = 159,626,652.30 : x
  2. Step 2: Convert to fraction form
    323,310,480.30/484,965,720.45 = 159,626,652.30/x
  3. Step 3: Cross multiply
    323,310,480.30x = 484,965,720.45 × 159,626,652.30
  4. Step 4: Simplify right side
    323,310,480.30x = 77,413,454,435,691,152
  5. Step 5: Solve for x
    x = 77,413,454,435,691,152/323,310,480.30
  6. Step 6: Final answer
    x = 239,439,978.45

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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.