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Finding the Fourth Proportional to 111,954.60, 167,931.90 and 76,525.20

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Solution

The fourth proportional to 111,954.60, 167,931.90 and 76,525.20 is: 114,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,954.60 : 167,931.90 = 76,525.20 : x
  2. Step 2: Convert to fraction form
    111,954.60/167,931.90 = 76,525.20/x
  3. Step 3: Cross multiply
    111,954.60x = 167,931.90 × 76,525.20
  4. Step 4: Simplify right side
    111,954.60x = 12,851,022,233.88
  5. Step 5: Solve for x
    x = 12,851,022,233.88/111,954.60
  6. Step 6: Final answer
    x = 114,787.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.