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Finding the Fourth Proportional to 95,535,644.80, 143,090,890.80 and 78,529,532.80

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Solution

The fourth proportional to 95,535,644.80, 143,090,890.80 and 78,529,532.80 is: 117,619,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,535,644.80 : 143,090,890.80 = 78,529,532.80 : x
  2. Step 2: Convert to fraction form
    95,535,644.80/143,090,890.80 = 78,529,532.80/x
  3. Step 3: Cross multiply
    95,535,644.80x = 143,090,890.80 × 78,529,532.80
  4. Step 4: Simplify right side
    95,535,644.80x = 11,236,860,802,459,818
  5. Step 5: Solve for x
    x = 11,236,860,802,459,818/95,535,644.80
  6. Step 6: Final answer
    x = 117,619,563.11

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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.