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Finding the Fourth Proportional to 111,459.64, 167,188.88 and 27,220.28

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Solution

The fourth proportional to 111,459.64, 167,188.88 and 27,220.28 is: 40,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,459.64 : 167,188.88 = 27,220.28 : x
  2. Step 2: Convert to fraction form
    111,459.64/167,188.88 = 27,220.28/x
  3. Step 3: Cross multiply
    111,459.64x = 167,188.88 × 27,220.28
  4. Step 4: Simplify right side
    111,459.64x = 4,550,928,126.49
  5. Step 5: Solve for x
    x = 4,550,928,126.49/111,459.64
  6. Step 6: Final answer
    x = 40,830.28

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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.