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Finding the Fourth Proportional to 99,855,986.90, 140,201,489.50 and 99,855,986.90

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Solution

The fourth proportional to 99,855,986.90, 140,201,489.50 and 99,855,986.90 is: 140,201,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,855,986.90 : 140,201,489.50 = 99,855,986.90 : x
  2. Step 2: Convert to fraction form
    99,855,986.90/140,201,489.50 = 99,855,986.90/x
  3. Step 3: Cross multiply
    99,855,986.90x = 140,201,489.50 × 99,855,986.90
  4. Step 4: Simplify right side
    99,855,986.90x = 13,999,958,098,872,488
  5. Step 5: Solve for x
    x = 13,999,958,098,872,488/99,855,986.90
  6. Step 6: Final answer
    x = 140,201,489.50

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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.