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Finding the Fourth Proportional to 98,668.88, 148,042.24 and 43,226

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Solution

The fourth proportional to 98,668.88, 148,042.24 and 43,226 is: 64,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668.88 : 148,042.24 = 43,226 : x
  2. Step 2: Convert to fraction form
    98,668.88/148,042.24 = 43,226/x
  3. Step 3: Cross multiply
    98,668.88x = 148,042.24 × 43,226
  4. Step 4: Simplify right side
    98,668.88x = 6,399,273,866.24
  5. Step 5: Solve for x
    x = 6,399,273,866.24/98,668.88
  6. Step 6: Final answer
    x = 64,856.05

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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.