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Finding the Fourth Proportional to 255,744.40, 383,616.60 and 97,891.60

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Solution

The fourth proportional to 255,744.40, 383,616.60 and 97,891.60 is: 146,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,744.40 : 383,616.60 = 97,891.60 : x
  2. Step 2: Convert to fraction form
    255,744.40/383,616.60 = 97,891.60/x
  3. Step 3: Cross multiply
    255,744.40x = 383,616.60 × 97,891.60
  4. Step 4: Simplify right side
    255,744.40x = 37,552,842,760.56
  5. Step 5: Solve for x
    x = 37,552,842,760.56/255,744.40
  6. Step 6: Final answer
    x = 146,837.40

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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.