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Finding the Fourth Proportional to 260,838.16, 391,272.60 and 73,834

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Solution

The fourth proportional to 260,838.16, 391,272.60 and 73,834 is: 110,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,838.16 : 391,272.60 = 73,834 : x
  2. Step 2: Convert to fraction form
    260,838.16/391,272.60 = 73,834/x
  3. Step 3: Cross multiply
    260,838.16x = 391,272.60 × 73,834
  4. Step 4: Simplify right side
    260,838.16x = 28,889,221,148.40
  5. Step 5: Solve for x
    x = 28,889,221,148.40/260,838.16
  6. Step 6: Final answer
    x = 110,755.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.