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Finding the Fourth Proportional to 116,351.63, 160,553.91 and 65,352.81

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Solution

The fourth proportional to 116,351.63, 160,553.91 and 65,352.81 is: 90,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,351.63 : 160,553.91 = 65,352.81 : x
  2. Step 2: Convert to fraction form
    116,351.63/160,553.91 = 65,352.81/x
  3. Step 3: Cross multiply
    116,351.63x = 160,553.91 × 65,352.81
  4. Step 4: Simplify right side
    116,351.63x = 10,492,649,174.99
  5. Step 5: Solve for x
    x = 10,492,649,174.99/116,351.63
  6. Step 6: Final answer
    x = 90,180.51

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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.