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Finding the Fourth Proportional to 122,994.40, 184,491.60 and 111,913.60

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Solution

The fourth proportional to 122,994.40, 184,491.60 and 111,913.60 is: 167,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,994.40 : 184,491.60 = 111,913.60 : x
  2. Step 2: Convert to fraction form
    122,994.40/184,491.60 = 111,913.60/x
  3. Step 3: Cross multiply
    122,994.40x = 184,491.60 × 111,913.60
  4. Step 4: Simplify right side
    122,994.40x = 20,647,119,125.76
  5. Step 5: Solve for x
    x = 20,647,119,125.76/122,994.40
  6. Step 6: Final answer
    x = 167,870.40

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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.