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Finding the Fourth Proportional to 173,642.20, 260,492.10 and 68,464.60

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Solution

The fourth proportional to 173,642.20, 260,492.10 and 68,464.60 is: 102,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,642.20 : 260,492.10 = 68,464.60 : x
  2. Step 2: Convert to fraction form
    173,642.20/260,492.10 = 68,464.60/x
  3. Step 3: Cross multiply
    173,642.20x = 260,492.10 × 68,464.60
  4. Step 4: Simplify right side
    173,642.20x = 17,834,487,429.66
  5. Step 5: Solve for x
    x = 17,834,487,429.66/173,642.20
  6. Step 6: Final answer
    x = 102,708.26

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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.