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Finding the Fourth Proportional to 103,676.43, 155,539.32 and 33,555.74

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Solution

The fourth proportional to 103,676.43, 155,539.32 and 33,555.74 is: 50,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.43 : 155,539.32 = 33,555.74 : x
  2. Step 2: Convert to fraction form
    103,676.43/155,539.32 = 33,555.74/x
  3. Step 3: Cross multiply
    103,676.43x = 155,539.32 × 33,555.74
  4. Step 4: Simplify right side
    103,676.43x = 5,219,236,981.70
  5. Step 5: Solve for x
    x = 5,219,236,981.70/103,676.43
  6. Step 6: Final answer
    x = 50,341.60

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1.5x scale

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.