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Finding the Fourth Proportional to 111,171.06, 166,756.95 and 26,931.06

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Solution

The fourth proportional to 111,171.06, 166,756.95 and 26,931.06 is: 40,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,171.06 : 166,756.95 = 26,931.06 : x
  2. Step 2: Convert to fraction form
    111,171.06/166,756.95 = 26,931.06/x
  3. Step 3: Cross multiply
    111,171.06x = 166,756.95 × 26,931.06
  4. Step 4: Simplify right side
    111,171.06x = 4,490,941,425.87
  5. Step 5: Solve for x
    x = 4,490,941,425.87/111,171.06
  6. Step 6: Final answer
    x = 40,396.68

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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.