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Finding the Fourth Proportional to 116,888.26, 161,297.70 and 65,902.81

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Solution

The fourth proportional to 116,888.26, 161,297.70 and 65,902.81 is: 90,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,888.26 : 161,297.70 = 65,902.81 : x
  2. Step 2: Convert to fraction form
    116,888.26/161,297.70 = 65,902.81/x
  3. Step 3: Cross multiply
    116,888.26x = 161,297.70 × 65,902.81
  4. Step 4: Simplify right side
    116,888.26x = 10,629,970,870.05
  5. Step 5: Solve for x
    x = 10,629,970,870.05/116,888.26
  6. Step 6: Final answer
    x = 90,941.31

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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.