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Finding the Fourth Proportional to 122,706.40, 184,059.60 and 83,048.80

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Solution

The fourth proportional to 122,706.40, 184,059.60 and 83,048.80 is: 124,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,706.40 : 184,059.60 = 83,048.80 : x
  2. Step 2: Convert to fraction form
    122,706.40/184,059.60 = 83,048.80/x
  3. Step 3: Cross multiply
    122,706.40x = 184,059.60 × 83,048.80
  4. Step 4: Simplify right side
    122,706.40x = 15,285,928,908.48
  5. Step 5: Solve for x
    x = 15,285,928,908.48/122,706.40
  6. Step 6: Final answer
    x = 124,573.20

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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.