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Finding the Fourth Proportional to 99,668.52, 149,336.30 and 70,033.29

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Solution

The fourth proportional to 99,668.52, 149,336.30 and 70,033.29 is: 104,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668.52 : 149,336.30 = 70,033.29 : x
  2. Step 2: Convert to fraction form
    99,668.52/149,336.30 = 70,033.29/x
  3. Step 3: Cross multiply
    99,668.52x = 149,336.30 × 70,033.29
  4. Step 4: Simplify right side
    99,668.52x = 10,458,512,055.26
  5. Step 5: Solve for x
    x = 10,458,512,055.26/99,668.52
  6. Step 6: Final answer
    x = 104,932.95

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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.