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Finding the Fourth Proportional to 114,039.08, 171,065.64 and 43,918.64

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Solution

The fourth proportional to 114,039.08, 171,065.64 and 43,918.64 is: 65,880.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,039.08 : 171,065.64 = 43,918.64 : x
  2. Step 2: Convert to fraction form
    114,039.08/171,065.64 = 43,918.64/x
  3. Step 3: Cross multiply
    114,039.08x = 171,065.64 × 43,918.64
  4. Step 4: Simplify right side
    114,039.08x = 7,512,970,259.53
  5. Step 5: Solve for x
    x = 7,512,970,259.53/114,039.08
  6. Step 6: Final answer
    x = 65,880.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.