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Finding the Fourth Proportional to 122,407.96, 183,494.48 and 43,479.12

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Solution

The fourth proportional to 122,407.96, 183,494.48 and 43,479.12 is: 65,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,407.96 : 183,494.48 = 43,479.12 : x
  2. Step 2: Convert to fraction form
    122,407.96/183,494.48 = 43,479.12/x
  3. Step 3: Cross multiply
    122,407.96x = 183,494.48 × 43,479.12
  4. Step 4: Simplify right side
    122,407.96x = 7,978,178,515.26
  5. Step 5: Solve for x
    x = 7,978,178,515.26/122,407.96
  6. Step 6: Final answer
    x = 65,176.96

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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.