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Finding the Fourth Proportional to 93,049.19, 128,408.49 and 50,608.03

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Solution

The fourth proportional to 93,049.19, 128,408.49 and 50,608.03 is: 69,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,049.19 : 128,408.49 = 50,608.03 : x
  2. Step 2: Convert to fraction form
    93,049.19/128,408.49 = 50,608.03/x
  3. Step 3: Cross multiply
    93,049.19x = 128,408.49 × 50,608.03
  4. Step 4: Simplify right side
    93,049.19x = 6,498,500,714.17
  5. Step 5: Solve for x
    x = 6,498,500,714.17/93,049.19
  6. Step 6: Final answer
    x = 69,839.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.