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Finding the Fourth Proportional to 255,522.20, 383,429.10 and 97,863.80

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Solution

The fourth proportional to 255,522.20, 383,429.10 and 97,863.80 is: 146,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,522.20 : 383,429.10 = 97,863.80 : x
  2. Step 2: Convert to fraction form
    255,522.20/383,429.10 = 97,863.80/x
  3. Step 3: Cross multiply
    255,522.20x = 383,429.10 × 97,863.80
  4. Step 4: Simplify right side
    255,522.20x = 37,523,828,756.58
  5. Step 5: Solve for x
    x = 37,523,828,756.58/255,522.20
  6. Step 6: Final answer
    x = 146,851.54

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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.