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Finding the Fourth Proportional to 352,015.32, 528,039.38 and 102,697.32

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Solution

The fourth proportional to 352,015.32, 528,039.38 and 102,697.32 is: 154,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,015.32 : 528,039.38 = 102,697.32 : x
  2. Step 2: Convert to fraction form
    352,015.32/528,039.38 = 102,697.32/x
  3. Step 3: Cross multiply
    352,015.32x = 528,039.38 × 102,697.32
  4. Step 4: Simplify right side
    352,015.32x = 54,228,229,180.46
  5. Step 5: Solve for x
    x = 54,228,229,180.46/352,015.32
  6. Step 6: Final answer
    x = 154,050.76

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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.