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Finding the Fourth Proportional to 69,911.19, 104,821.56 and 29,956.32

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Solution

The fourth proportional to 69,911.19, 104,821.56 and 29,956.32 is: 44,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,911.19 : 104,821.56 = 29,956.32 : x
  2. Step 2: Convert to fraction form
    69,911.19/104,821.56 = 29,956.32/x
  3. Step 3: Cross multiply
    69,911.19x = 104,821.56 × 29,956.32
  4. Step 4: Simplify right side
    69,911.19x = 3,140,068,194.26
  5. Step 5: Solve for x
    x = 3,140,068,194.26/69,911.19
  6. Step 6: Final answer
    x = 44,915.10

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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.