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Finding the Fourth Proportional to 248,889.70, 373,332.79 and 71,396.90

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Solution

The fourth proportional to 248,889.70, 373,332.79 and 71,396.90 is: 107,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,889.70 : 373,332.79 = 71,396.90 : x
  2. Step 2: Convert to fraction form
    248,889.70/373,332.79 = 71,396.90/x
  3. Step 3: Cross multiply
    248,889.70x = 373,332.79 × 71,396.90
  4. Step 4: Simplify right side
    248,889.70x = 26,654,803,874.35
  5. Step 5: Solve for x
    x = 26,654,803,874.35/248,889.70
  6. Step 6: Final answer
    x = 107,094.85

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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.