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Finding the Fourth Proportional to 353,388.44, 530,108.58 and 100,664.12

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Solution

The fourth proportional to 353,388.44, 530,108.58 and 100,664.12 is: 151,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,388.44 : 530,108.58 = 100,664.12 : x
  2. Step 2: Convert to fraction form
    353,388.44/530,108.58 = 100,664.12/x
  3. Step 3: Cross multiply
    353,388.44x = 530,108.58 × 100,664.12
  4. Step 4: Simplify right side
    353,388.44x = 53,362,913,710.15
  5. Step 5: Solve for x
    x = 53,362,913,710.15/353,388.44
  6. Step 6: Final answer
    x = 151,003.56

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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.