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Finding the Fourth Proportional to 71,310,502.80, 106,965,754.20 and 71,310,502.80

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Solution

The fourth proportional to 71,310,502.80, 106,965,754.20 and 71,310,502.80 is: 106,965,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,310,502.80 : 106,965,754.20 = 71,310,502.80 : x
  2. Step 2: Convert to fraction form
    71,310,502.80/106,965,754.20 = 71,310,502.80/x
  3. Step 3: Cross multiply
    71,310,502.80x = 106,965,754.20 × 71,310,502.80
  4. Step 4: Simplify right side
    71,310,502.80x = 7,627,781,714,383,212
  5. Step 5: Solve for x
    x = 7,627,781,714,383,212/71,310,502.80
  6. Step 6: Final answer
    x = 106,965,754.20

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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.