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Finding the Fourth Proportional to 122,984.40, 184,476.60 and 111,903.60

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Solution

The fourth proportional to 122,984.40, 184,476.60 and 111,903.60 is: 167,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,984.40 : 184,476.60 = 111,903.60 : x
  2. Step 2: Convert to fraction form
    122,984.40/184,476.60 = 111,903.60/x
  3. Step 3: Cross multiply
    122,984.40x = 184,476.60 × 111,903.60
  4. Step 4: Simplify right side
    122,984.40x = 20,643,595,655.76
  5. Step 5: Solve for x
    x = 20,643,595,655.76/122,984.40
  6. Step 6: Final answer
    x = 167,855.40

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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.