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Finding the Fourth Proportional to 98,911.92, 148,392.36 and 28,791.84

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Solution

The fourth proportional to 98,911.92, 148,392.36 and 28,791.84 is: 43,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,911.92 : 148,392.36 = 28,791.84 : x
  2. Step 2: Convert to fraction form
    98,911.92/148,392.36 = 28,791.84/x
  3. Step 3: Cross multiply
    98,911.92x = 148,392.36 × 28,791.84
  4. Step 4: Simplify right side
    98,911.92x = 4,272,489,086.34
  5. Step 5: Solve for x
    x = 4,272,489,086.34/98,911.92
  6. Step 6: Final answer
    x = 43,194.89

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1.5x scale

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.