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Finding the Fourth Proportional to 124,321.90, 171,562.62 and 67,733.32

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Solution

The fourth proportional to 124,321.90, 171,562.62 and 67,733.32 is: 93,471.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,321.90 : 171,562.62 = 67,733.32 : x
  2. Step 2: Convert to fraction form
    124,321.90/171,562.62 = 67,733.32/x
  3. Step 3: Cross multiply
    124,321.90x = 171,562.62 × 67,733.32
  4. Step 4: Simplify right side
    124,321.90x = 11,620,505,840.50
  5. Step 5: Solve for x
    x = 11,620,505,840.50/124,321.90
  6. Step 6: Final answer
    x = 93,471.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.