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Finding the Fourth Proportional to 270,505.64, 373,308.78 and 149,644.85

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Solution

The fourth proportional to 270,505.64, 373,308.78 and 149,644.85 is: 206,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,505.64 : 373,308.78 = 149,644.85 : x
  2. Step 2: Convert to fraction form
    270,505.64/373,308.78 = 149,644.85/x
  3. Step 3: Cross multiply
    270,505.64x = 373,308.78 × 149,644.85
  4. Step 4: Simplify right side
    270,505.64x = 55,863,736,386.78
  5. Step 5: Solve for x
    x = 55,863,736,386.78/270,505.64
  6. Step 6: Final answer
    x = 206,515.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.