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Finding the Fourth Proportional to 255,951.32, 383,139.45 and 167,013.32

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Solution

The fourth proportional to 255,951.32, 383,139.45 and 167,013.32 is: 250,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,951.32 : 383,139.45 = 167,013.32 : x
  2. Step 2: Convert to fraction form
    255,951.32/383,139.45 = 167,013.32/x
  3. Step 3: Cross multiply
    255,951.32x = 383,139.45 × 167,013.32
  4. Step 4: Simplify right side
    255,951.32x = 63,989,389,651.78
  5. Step 5: Solve for x
    x = 63,989,389,651.78/255,951.32
  6. Step 6: Final answer
    x = 250,006.10

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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.