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Finding the Fourth Proportional to 79,843,673.60, 119,765,510.40 and 58,019,163.20

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Solution

The fourth proportional to 79,843,673.60, 119,765,510.40 and 58,019,163.20 is: 87,028,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,843,673.60 : 119,765,510.40 = 58,019,163.20 : x
  2. Step 2: Convert to fraction form
    79,843,673.60/119,765,510.40 = 58,019,163.20/x
  3. Step 3: Cross multiply
    79,843,673.60x = 119,765,510.40 × 58,019,163.20
  4. Step 4: Simplify right side
    79,843,673.60x = 6,948,694,693,628,898
  5. Step 5: Solve for x
    x = 6,948,694,693,628,898/79,843,673.60
  6. Step 6: Final answer
    x = 87,028,744.80

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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.