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Finding the Fourth Proportional to 173,721.60, 260,679.60 and 73,864.80

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Solution

The fourth proportional to 173,721.60, 260,679.60 and 73,864.80 is: 110,838.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,721.60 : 260,679.60 = 73,864.80 : x
  2. Step 2: Convert to fraction form
    173,721.60/260,679.60 = 73,864.80/x
  3. Step 3: Cross multiply
    173,721.60x = 260,679.60 × 73,864.80
  4. Step 4: Simplify right side
    173,721.60x = 19,255,046,518.08
  5. Step 5: Solve for x
    x = 19,255,046,518.08/173,721.60
  6. Step 6: Final answer
    x = 110,838.53

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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.