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Finding the Fourth Proportional to 93,668.88, 140,292.36 and 65,713.44

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Solution

The fourth proportional to 93,668.88, 140,292.36 and 65,713.44 is: 98,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,668.88 : 140,292.36 = 65,713.44 : x
  2. Step 2: Convert to fraction form
    93,668.88/140,292.36 = 65,713.44/x
  3. Step 3: Cross multiply
    93,668.88x = 140,292.36 × 65,713.44
  4. Step 4: Simplify right side
    93,668.88x = 9,219,093,581.32
  5. Step 5: Solve for x
    x = 9,219,093,581.32/93,668.88
  6. Step 6: Final answer
    x = 98,422.16

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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.