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Finding the Fourth Proportional to 349,062.45, 523,101.60 and 215,546.10

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Solution

The fourth proportional to 349,062.45, 523,101.60 and 215,546.10 is: 323,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,062.45 : 523,101.60 = 215,546.10 : x
  2. Step 2: Convert to fraction form
    349,062.45/523,101.60 = 215,546.10/x
  3. Step 3: Cross multiply
    349,062.45x = 523,101.60 × 215,546.10
  4. Step 4: Simplify right side
    349,062.45x = 112,752,509,783.76
  5. Step 5: Solve for x
    x = 112,752,509,783.76/349,062.45
  6. Step 6: Final answer
    x = 323,015.29

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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.