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Finding the Fourth Proportional to 115,539.60, 173,163.60 and 56,247.60

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Solution

The fourth proportional to 115,539.60, 173,163.60 and 56,247.60 is: 84,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,539.60 : 173,163.60 = 56,247.60 : x
  2. Step 2: Convert to fraction form
    115,539.60/173,163.60 = 56,247.60/x
  3. Step 3: Cross multiply
    115,539.60x = 173,163.60 × 56,247.60
  4. Step 4: Simplify right side
    115,539.60x = 9,740,036,907.36
  5. Step 5: Solve for x
    x = 9,740,036,907.36/115,539.60
  6. Step 6: Final answer
    x = 84,300.42

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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.