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Finding the Fourth Proportional to 111,036.60, 166,554.90 and 40,906.80

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Solution

The fourth proportional to 111,036.60, 166,554.90 and 40,906.80 is: 61,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,036.60 : 166,554.90 = 40,906.80 : x
  2. Step 2: Convert to fraction form
    111,036.60/166,554.90 = 40,906.80/x
  3. Step 3: Cross multiply
    111,036.60x = 166,554.90 × 40,906.80
  4. Step 4: Simplify right side
    111,036.60x = 6,813,227,983.32
  5. Step 5: Solve for x
    x = 6,813,227,983.32/111,036.60
  6. Step 6: Final answer
    x = 61,360.20

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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.