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Finding the Fourth Proportional to 252,487,352.30, 352,621,358.80 and 252,487,352.30

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Solution

The fourth proportional to 252,487,352.30, 352,621,358.80 and 252,487,352.30 is: 352,621,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,487,352.30 : 352,621,358.80 = 252,487,352.30 : x
  2. Step 2: Convert to fraction form
    252,487,352.30/352,621,358.80 = 252,487,352.30/x
  3. Step 3: Cross multiply
    252,487,352.30x = 352,621,358.80 × 252,487,352.30
  4. Step 4: Simplify right side
    252,487,352.30x = 89,032,433,247,840,320
  5. Step 5: Solve for x
    x = 89,032,433,247,840,320/252,487,352.30
  6. Step 6: Final answer
    x = 352,621,358.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.