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Finding the Fourth Proportional to 325,557.45, 488,464.74 and 100,935.54

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Solution

The fourth proportional to 325,557.45, 488,464.74 and 100,935.54 is: 151,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,557.45 : 488,464.74 = 100,935.54 : x
  2. Step 2: Convert to fraction form
    325,557.45/488,464.74 = 100,935.54/x
  3. Step 3: Cross multiply
    325,557.45x = 488,464.74 × 100,935.54
  4. Step 4: Simplify right side
    325,557.45x = 49,303,452,302.86
  5. Step 5: Solve for x
    x = 49,303,452,302.86/325,557.45
  6. Step 6: Final answer
    x = 151,443.17

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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.