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Finding the Fourth Proportional to 98,970.67, 148,469.37 and 28,849.42

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Solution

The fourth proportional to 98,970.67, 148,469.37 and 28,849.42 is: 43,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,970.67 : 148,469.37 = 28,849.42 : x
  2. Step 2: Convert to fraction form
    98,970.67/148,469.37 = 28,849.42/x
  3. Step 3: Cross multiply
    98,970.67x = 148,469.37 × 28,849.42
  4. Step 4: Simplify right side
    98,970.67x = 4,283,255,212.27
  5. Step 5: Solve for x
    x = 4,283,255,212.27/98,970.67
  6. Step 6: Final answer
    x = 43,278.03

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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.