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Finding the Fourth Proportional to 104,466.34, 156,788.99 and 103,680.05

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Solution

The fourth proportional to 104,466.34, 156,788.99 and 103,680.05 is: 155,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,466.34 : 156,788.99 = 103,680.05 : x
  2. Step 2: Convert to fraction form
    104,466.34/156,788.99 = 103,680.05/x
  3. Step 3: Cross multiply
    104,466.34x = 156,788.99 × 103,680.05
  4. Step 4: Simplify right side
    104,466.34x = 16,255,889,409.10
  5. Step 5: Solve for x
    x = 16,255,889,409.10/104,466.34
  6. Step 6: Final answer
    x = 155,608.87

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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.