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Finding the Fourth Proportional to 140,258,411.80, 210,387,617.70 and 140,258,411.80

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Solution

The fourth proportional to 140,258,411.80, 210,387,617.70 and 140,258,411.80 is: 210,387,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,258,411.80 : 210,387,617.70 = 140,258,411.80 : x
  2. Step 2: Convert to fraction form
    140,258,411.80/210,387,617.70 = 140,258,411.80/x
  3. Step 3: Cross multiply
    140,258,411.80x = 210,387,617.70 × 140,258,411.80
  4. Step 4: Simplify right side
    140,258,411.80x = 29,508,633,120,987,568
  5. Step 5: Solve for x
    x = 29,508,633,120,987,568/140,258,411.80
  6. Step 6: Final answer
    x = 210,387,617.70

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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.