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Finding the Fourth Proportional to 325,560.44, 488,416.40 and 100,908.96

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Solution

The fourth proportional to 325,560.44, 488,416.40 and 100,908.96 is: 151,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,560.44 : 488,416.40 = 100,908.96 : x
  2. Step 2: Convert to fraction form
    325,560.44/488,416.40 = 100,908.96/x
  3. Step 3: Cross multiply
    325,560.44x = 488,416.40 × 100,908.96
  4. Step 4: Simplify right side
    325,560.44x = 49,285,590,970.94
  5. Step 5: Solve for x
    x = 49,285,590,970.94/325,560.44
  6. Step 6: Final answer
    x = 151,386.92

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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.