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Finding the Fourth Proportional to 116,601.70, 160,911.03 and 65,615.28

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Solution

The fourth proportional to 116,601.70, 160,911.03 and 65,615.28 is: 90,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,601.70 : 160,911.03 = 65,615.28 : x
  2. Step 2: Convert to fraction form
    116,601.70/160,911.03 = 65,615.28/x
  3. Step 3: Cross multiply
    116,601.70x = 160,911.03 × 65,615.28
  4. Step 4: Simplify right side
    116,601.70x = 10,558,222,288.54
  5. Step 5: Solve for x
    x = 10,558,222,288.54/116,601.70
  6. Step 6: Final answer
    x = 90,549.47

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1.5x scale

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.