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Finding the Fourth Proportional to 160,668.70, 221,719.38 and 89,048.08

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Solution

The fourth proportional to 160,668.70, 221,719.38 and 89,048.08 is: 122,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,668.70 : 221,719.38 = 89,048.08 : x
  2. Step 2: Convert to fraction form
    160,668.70/221,719.38 = 89,048.08/x
  3. Step 3: Cross multiply
    160,668.70x = 221,719.38 × 89,048.08
  4. Step 4: Simplify right side
    160,668.70x = 19,743,685,087.79
  5. Step 5: Solve for x
    x = 19,743,685,087.79/160,668.70
  6. Step 6: Final answer
    x = 122,884.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.