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Finding the Fourth Proportional to 254,960.53, 382,439.37 and 65,420.53

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Solution

The fourth proportional to 254,960.53, 382,439.37 and 65,420.53 is: 98,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,960.53 : 382,439.37 = 65,420.53 : x
  2. Step 2: Convert to fraction form
    254,960.53/382,439.37 = 65,420.53/x
  3. Step 3: Cross multiply
    254,960.53x = 382,439.37 × 65,420.53
  4. Step 4: Simplify right side
    254,960.53x = 25,019,386,278.27
  5. Step 5: Solve for x
    x = 25,019,386,278.27/254,960.53
  6. Step 6: Final answer
    x = 98,130.43

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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.