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Finding the Fourth Proportional to 165,961,815.30, 248,942,722.95 and 165,961,815.30

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Solution

The fourth proportional to 165,961,815.30, 248,942,722.95 and 165,961,815.30 is: 248,942,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,961,815.30 : 248,942,722.95 = 165,961,815.30 : x
  2. Step 2: Convert to fraction form
    165,961,815.30/248,942,722.95 = 165,961,815.30/x
  3. Step 3: Cross multiply
    165,961,815.30x = 248,942,722.95 × 165,961,815.30
  4. Step 4: Simplify right side
    165,961,815.30x = 41,314,986,206,506,976
  5. Step 5: Solve for x
    x = 41,314,986,206,506,976/165,961,815.30
  6. Step 6: Final answer
    x = 248,942,722.95

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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.