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Finding the Fourth Proportional to 116,641.33, 160,970.16 and 65,657.35

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Solution

The fourth proportional to 116,641.33, 160,970.16 and 65,657.35 is: 90,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,641.33 : 160,970.16 = 65,657.35 : x
  2. Step 2: Convert to fraction form
    116,641.33/160,970.16 = 65,657.35/x
  3. Step 3: Cross multiply
    116,641.33x = 160,970.16 × 65,657.35
  4. Step 4: Simplify right side
    116,641.33x = 10,568,874,134.68
  5. Step 5: Solve for x
    x = 10,568,874,134.68/116,641.33
  6. Step 6: Final answer
    x = 90,610.03

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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.