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Finding the Fourth Proportional to 255,610.70, 383,412.45 and 115,369.10

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Solution

The fourth proportional to 255,610.70, 383,412.45 and 115,369.10 is: 173,052.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,610.70 : 383,412.45 = 115,369.10 : x
  2. Step 2: Convert to fraction form
    255,610.70/383,412.45 = 115,369.10/x
  3. Step 3: Cross multiply
    255,610.70x = 383,412.45 × 115,369.10
  4. Step 4: Simplify right side
    255,610.70x = 44,233,949,285.30
  5. Step 5: Solve for x
    x = 44,233,949,285.30/255,610.70
  6. Step 6: Final answer
    x = 173,052.03

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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.