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Finding the Fourth Proportional to 254,544.80, 381,817.20 and 248,712.80

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Solution

The fourth proportional to 254,544.80, 381,817.20 and 248,712.80 is: 373,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,544.80 : 381,817.20 = 248,712.80 : x
  2. Step 2: Convert to fraction form
    254,544.80/381,817.20 = 248,712.80/x
  3. Step 3: Cross multiply
    254,544.80x = 381,817.20 × 248,712.80
  4. Step 4: Simplify right side
    254,544.80x = 94,962,824,900.16
  5. Step 5: Solve for x
    x = 94,962,824,900.16/254,544.80
  6. Step 6: Final answer
    x = 373,069.20

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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.