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Finding the Fourth Proportional to 122,958.40, 184,437.60 and 122,180.80

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Solution

The fourth proportional to 122,958.40, 184,437.60 and 122,180.80 is: 183,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,958.40 : 184,437.60 = 122,180.80 : x
  2. Step 2: Convert to fraction form
    122,958.40/184,437.60 = 122,180.80/x
  3. Step 3: Cross multiply
    122,958.40x = 184,437.60 × 122,180.80
  4. Step 4: Simplify right side
    122,958.40x = 22,534,733,518.08
  5. Step 5: Solve for x
    x = 22,534,733,518.08/122,958.40
  6. Step 6: Final answer
    x = 183,271.20

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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.