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Finding the Fourth Proportional to 303,975.64, 419,486.79 and 174,911.55

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Solution

The fourth proportional to 303,975.64, 419,486.79 and 174,911.55 is: 241,378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,975.64 : 419,486.79 = 174,911.55 : x
  2. Step 2: Convert to fraction form
    303,975.64/419,486.79 = 174,911.55/x
  3. Step 3: Cross multiply
    303,975.64x = 419,486.79 × 174,911.55
  4. Step 4: Simplify right side
    303,975.64x = 73,373,084,643.42
  5. Step 5: Solve for x
    x = 73,373,084,643.42/303,975.64
  6. Step 6: Final answer
    x = 241,378.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.