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Finding the Fourth Proportional to 111,419,220.60, 167,128,830.90 and 111,419,220.60

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Solution

The fourth proportional to 111,419,220.60, 167,128,830.90 and 111,419,220.60 is: 167,128,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,419,220.60 : 167,128,830.90 = 111,419,220.60 : x
  2. Step 2: Convert to fraction form
    111,419,220.60/167,128,830.90 = 111,419,220.60/x
  3. Step 3: Cross multiply
    111,419,220.60x = 167,128,830.90 × 111,419,220.60
  4. Step 4: Simplify right side
    111,419,220.60x = 18,621,364,078,667,196
  5. Step 5: Solve for x
    x = 18,621,364,078,667,196/111,419,220.60
  6. Step 6: Final answer
    x = 167,128,830.90

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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.