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Finding the Fourth Proportional to 98,969.67, 148,467.87 and 28,848.42

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Solution

The fourth proportional to 98,969.67, 148,467.87 and 28,848.42 is: 43,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,969.67 : 148,467.87 = 28,848.42 : x
  2. Step 2: Convert to fraction form
    98,969.67/148,467.87 = 28,848.42/x
  3. Step 3: Cross multiply
    98,969.67x = 148,467.87 × 28,848.42
  4. Step 4: Simplify right side
    98,969.67x = 4,283,063,470.27
  5. Step 5: Solve for x
    x = 4,283,063,470.27/98,969.67
  6. Step 6: Final answer
    x = 43,276.53

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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.