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Finding the Fourth Proportional to 291,904.32, 437,161.44 and 186,396.48

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Solution

The fourth proportional to 291,904.32, 437,161.44 and 186,396.48 is: 279,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,904.32 : 437,161.44 = 186,396.48 : x
  2. Step 2: Convert to fraction form
    291,904.32/437,161.44 = 186,396.48/x
  3. Step 3: Cross multiply
    291,904.32x = 437,161.44 × 186,396.48
  4. Step 4: Simplify right side
    291,904.32x = 81,485,353,607.73
  5. Step 5: Solve for x
    x = 81,485,353,607.73/291,904.32
  6. Step 6: Final answer
    x = 279,150.90

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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.