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Finding the Fourth Proportional to 117,048.66, 161,526.96 and 66,072.12

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Solution

The fourth proportional to 117,048.66, 161,526.96 and 66,072.12 is: 91,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,048.66 : 161,526.96 = 66,072.12 : x
  2. Step 2: Convert to fraction form
    117,048.66/161,526.96 = 66,072.12/x
  3. Step 3: Cross multiply
    117,048.66x = 161,526.96 × 66,072.12
  4. Step 4: Simplify right side
    117,048.66x = 10,672,428,684.36
  5. Step 5: Solve for x
    x = 10,672,428,684.36/117,048.66
  6. Step 6: Final answer
    x = 91,179.42

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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.