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Finding the Fourth Proportional to 117,243.45, 161,796.10 and 63,528.45

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Solution

The fourth proportional to 117,243.45, 161,796.10 and 63,528.45 is: 87,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,243.45 : 161,796.10 = 63,528.45 : x
  2. Step 2: Convert to fraction form
    117,243.45/161,796.10 = 63,528.45/x
  3. Step 3: Cross multiply
    117,243.45x = 161,796.10 × 63,528.45
  4. Step 4: Simplify right side
    117,243.45x = 10,278,655,449.05
  5. Step 5: Solve for x
    x = 10,278,655,449.05/117,243.45
  6. Step 6: Final answer
    x = 87,669.34

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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.