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Finding the Fourth Proportional to 143,890,108.20, 201,899,647.80 and 143,890,108.20

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Solution

The fourth proportional to 143,890,108.20, 201,899,647.80 and 143,890,108.20 is: 201,899,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890,108.20 : 201,899,647.80 = 143,890,108.20 : x
  2. Step 2: Convert to fraction form
    143,890,108.20/201,899,647.80 = 143,890,108.20/x
  3. Step 3: Cross multiply
    143,890,108.20x = 201,899,647.80 × 143,890,108.20
  4. Step 4: Simplify right side
    143,890,108.20x = 29,051,362,167,483,892
  5. Step 5: Solve for x
    x = 29,051,362,167,483,892/143,890,108.20
  6. Step 6: Final answer
    x = 201,899,647.80

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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.