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Finding the Fourth Proportional to 255,955.95, 383,379.85 and 166,939.41

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Solution

The fourth proportional to 255,955.95, 383,379.85 and 166,939.41 is: 250,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,955.95 : 383,379.85 = 166,939.41 : x
  2. Step 2: Convert to fraction form
    255,955.95/383,379.85 = 166,939.41/x
  3. Step 3: Cross multiply
    255,955.95x = 383,379.85 × 166,939.41
  4. Step 4: Simplify right side
    255,955.95x = 64,001,205,964.89
  5. Step 5: Solve for x
    x = 64,001,205,964.89/255,955.95
  6. Step 6: Final answer
    x = 250,047.74

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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.