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Finding the Fourth Proportional to 254,728.30, 357,144.50 and 254,728.30

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Solution

The fourth proportional to 254,728.30, 357,144.50 and 254,728.30 is: 357,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,728.30 : 357,144.50 = 254,728.30 : x
  2. Step 2: Convert to fraction form
    254,728.30/357,144.50 = 254,728.30/x
  3. Step 3: Cross multiply
    254,728.30x = 357,144.50 × 254,728.30
  4. Step 4: Simplify right side
    254,728.30x = 90,974,811,339.35
  5. Step 5: Solve for x
    x = 90,974,811,339.35/254,728.30
  6. Step 6: Final answer
    x = 357,144.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.