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Finding the Fourth Proportional to 95,687,999.80, 143,531,999.70 and 65,454,911.80

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Solution

The fourth proportional to 95,687,999.80, 143,531,999.70 and 65,454,911.80 is: 98,182,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,687,999.80 : 143,531,999.70 = 65,454,911.80 : x
  2. Step 2: Convert to fraction form
    95,687,999.80/143,531,999.70 = 65,454,911.80/x
  3. Step 3: Cross multiply
    95,687,999.80x = 143,531,999.70 × 65,454,911.80
  4. Step 4: Simplify right side
    95,687,999.80x = 9,394,874,380,841,126
  5. Step 5: Solve for x
    x = 9,394,874,380,841,126/95,687,999.80
  6. Step 6: Final answer
    x = 98,182,367.70

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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.