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Finding the Fourth Proportional to 117,607.53, 176,761.22 and 55,321.77

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Solution

The fourth proportional to 117,607.53, 176,761.22 and 55,321.77 is: 83,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,607.53 : 176,761.22 = 55,321.77 : x
  2. Step 2: Convert to fraction form
    117,607.53/176,761.22 = 55,321.77/x
  3. Step 3: Cross multiply
    117,607.53x = 176,761.22 × 55,321.77
  4. Step 4: Simplify right side
    117,607.53x = 9,778,743,281.15
  5. Step 5: Solve for x
    x = 9,778,743,281.15/117,607.53
  6. Step 6: Final answer
    x = 83,147.25

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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.