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Finding the Fourth Proportional to 248,812.10, 373,218.15 and 71,308.70

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Solution

The fourth proportional to 248,812.10, 373,218.15 and 71,308.70 is: 106,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,812.10 : 373,218.15 = 71,308.70 : x
  2. Step 2: Convert to fraction form
    248,812.10/373,218.15 = 71,308.70/x
  3. Step 3: Cross multiply
    248,812.10x = 373,218.15 × 71,308.70
  4. Step 4: Simplify right side
    248,812.10x = 26,613,701,092.91
  5. Step 5: Solve for x
    x = 26,613,701,092.91/248,812.10
  6. Step 6: Final answer
    x = 106,963.05

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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.