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Finding the Fourth Proportional to 248,963.20, 373,444.80 and 82,729.60

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Solution

The fourth proportional to 248,963.20, 373,444.80 and 82,729.60 is: 124,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,963.20 : 373,444.80 = 82,729.60 : x
  2. Step 2: Convert to fraction form
    248,963.20/373,444.80 = 82,729.60/x
  3. Step 3: Cross multiply
    248,963.20x = 373,444.80 × 82,729.60
  4. Step 4: Simplify right side
    248,963.20x = 30,894,938,926.08
  5. Step 5: Solve for x
    x = 30,894,938,926.08/248,963.20
  6. Step 6: Final answer
    x = 124,094.40

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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.