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Finding the Fourth Proportional to 116,620.75, 160,950.81 and 65,652.58

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Solution

The fourth proportional to 116,620.75, 160,950.81 and 65,652.58 is: 90,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,620.75 : 160,950.81 = 65,652.58 : x
  2. Step 2: Convert to fraction form
    116,620.75/160,950.81 = 65,652.58/x
  3. Step 3: Cross multiply
    116,620.75x = 160,950.81 × 65,652.58
  4. Step 4: Simplify right side
    116,620.75x = 10,566,835,929.59
  5. Step 5: Solve for x
    x = 10,566,835,929.59/116,620.75
  6. Step 6: Final answer
    x = 90,608.54

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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.