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Finding the Fourth Proportional to 248,668.90, 373,061.67 and 98,917.72

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Solution

The fourth proportional to 248,668.90, 373,061.67 and 98,917.72 is: 148,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,668.90 : 373,061.67 = 98,917.72 : x
  2. Step 2: Convert to fraction form
    248,668.90/373,061.67 = 98,917.72/x
  3. Step 3: Cross multiply
    248,668.90x = 373,061.67 × 98,917.72
  4. Step 4: Simplify right side
    248,668.90x = 36,902,408,883.14
  5. Step 5: Solve for x
    x = 36,902,408,883.14/248,668.90
  6. Step 6: Final answer
    x = 148,399.78

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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.