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Finding the Fourth Proportional to 117,969.93, 162,802.41 and 66,984.87

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Solution

The fourth proportional to 117,969.93, 162,802.41 and 66,984.87 is: 92,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,969.93 : 162,802.41 = 66,984.87 : x
  2. Step 2: Convert to fraction form
    117,969.93/162,802.41 = 66,984.87/x
  3. Step 3: Cross multiply
    117,969.93x = 162,802.41 × 66,984.87
  4. Step 4: Simplify right side
    117,969.93x = 10,905,298,269.54
  5. Step 5: Solve for x
    x = 10,905,298,269.54/117,969.93
  6. Step 6: Final answer
    x = 92,441.34

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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.