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Finding the Fourth Proportional to 173,832.80, 260,835.60 and 68,655.20

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Solution

The fourth proportional to 173,832.80, 260,835.60 and 68,655.20 is: 103,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,832.80 : 260,835.60 = 68,655.20 : x
  2. Step 2: Convert to fraction form
    173,832.80/260,835.60 = 68,655.20/x
  3. Step 3: Cross multiply
    173,832.80x = 260,835.60 × 68,655.20
  4. Step 4: Simplify right side
    173,832.80x = 17,907,720,285.12
  5. Step 5: Solve for x
    x = 17,907,720,285.12/173,832.80
  6. Step 6: Final answer
    x = 103,016.92

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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.