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Finding the Fourth Proportional to 254,960.80, 382,113.15 and 155,014.90

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Solution

The fourth proportional to 254,960.80, 382,113.15 and 155,014.90 is: 232,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,960.80 : 382,113.15 = 155,014.90 : x
  2. Step 2: Convert to fraction form
    254,960.80/382,113.15 = 155,014.90/x
  3. Step 3: Cross multiply
    254,960.80x = 382,113.15 × 155,014.90
  4. Step 4: Simplify right side
    254,960.80x = 59,233,231,735.94
  5. Step 5: Solve for x
    x = 59,233,231,735.94/254,960.80
  6. Step 6: Final answer
    x = 232,322.90

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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.