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Finding the Fourth Proportional to 116,662.32, 160,992.60 and 66,361.20

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Solution

The fourth proportional to 116,662.32, 160,992.60 and 66,361.20 is: 91,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,662.32 : 160,992.60 = 66,361.20 : x
  2. Step 2: Convert to fraction form
    116,662.32/160,992.60 = 66,361.20/x
  3. Step 3: Cross multiply
    116,662.32x = 160,992.60 × 66,361.20
  4. Step 4: Simplify right side
    116,662.32x = 10,683,662,127.12
  5. Step 5: Solve for x
    x = 10,683,662,127.12/116,662.32
  6. Step 6: Final answer
    x = 91,577.66

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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.