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Finding the Fourth Proportional to 116,505.63, 174,933.41 and 66,642.03

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Solution

The fourth proportional to 116,505.63, 174,933.41 and 66,642.03 is: 100,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,505.63 : 174,933.41 = 66,642.03 : x
  2. Step 2: Convert to fraction form
    116,505.63/174,933.41 = 66,642.03/x
  3. Step 3: Cross multiply
    116,505.63x = 174,933.41 × 66,642.03
  4. Step 4: Simplify right side
    116,505.63x = 11,657,917,224.01
  5. Step 5: Solve for x
    x = 11,657,917,224.01/116,505.63
  6. Step 6: Final answer
    x = 100,063.12

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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.