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Finding the Fourth Proportional to 117,352.09, 161,944.47 and 63,636.47

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Solution

The fourth proportional to 117,352.09, 161,944.47 and 63,636.47 is: 87,817.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,352.09 : 161,944.47 = 63,636.47 : x
  2. Step 2: Convert to fraction form
    117,352.09/161,944.47 = 63,636.47/x
  3. Step 3: Cross multiply
    117,352.09x = 161,944.47 × 63,636.47
  4. Step 4: Simplify right side
    117,352.09x = 10,305,574,406.82
  5. Step 5: Solve for x
    x = 10,305,574,406.82/117,352.09
  6. Step 6: Final answer
    x = 87,817.56

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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.