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Finding the Fourth Proportional to 111,483.60, 166,966.20 and 76,232.40

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Solution

The fourth proportional to 111,483.60, 166,966.20 and 76,232.40 is: 114,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,483.60 : 166,966.20 = 76,232.40 : x
  2. Step 2: Convert to fraction form
    111,483.60/166,966.20 = 76,232.40/x
  3. Step 3: Cross multiply
    111,483.60x = 166,966.20 × 76,232.40
  4. Step 4: Simplify right side
    111,483.60x = 12,728,234,144.88
  5. Step 5: Solve for x
    x = 12,728,234,144.88/111,483.60
  6. Step 6: Final answer
    x = 114,171.36

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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.