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Finding the Fourth Proportional to 82,958,563.80, 124,437,845.70 and 57,449,395.80

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Solution

The fourth proportional to 82,958,563.80, 124,437,845.70 and 57,449,395.80 is: 86,174,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,958,563.80 : 124,437,845.70 = 57,449,395.80 : x
  2. Step 2: Convert to fraction form
    82,958,563.80/124,437,845.70 = 57,449,395.80/x
  3. Step 3: Cross multiply
    82,958,563.80x = 124,437,845.70 × 57,449,395.80
  4. Step 4: Simplify right side
    82,958,563.80x = 7,148,879,050,118,628
  5. Step 5: Solve for x
    x = 7,148,879,050,118,628/82,958,563.80
  6. Step 6: Final answer
    x = 86,174,093.70

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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.