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Finding the Fourth Proportional to 248,877.20, 373,315.80 and 217,773.20

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Solution

The fourth proportional to 248,877.20, 373,315.80 and 217,773.20 is: 326,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,877.20 : 373,315.80 = 217,773.20 : x
  2. Step 2: Convert to fraction form
    248,877.20/373,315.80 = 217,773.20/x
  3. Step 3: Cross multiply
    248,877.20x = 373,315.80 × 217,773.20
  4. Step 4: Simplify right side
    248,877.20x = 81,298,176,376.56
  5. Step 5: Solve for x
    x = 81,298,176,376.56/248,877.20
  6. Step 6: Final answer
    x = 326,659.80

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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.