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Finding the Fourth Proportional to 122,575.80, 183,906.90 and 118,255.80

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Solution

The fourth proportional to 122,575.80, 183,906.90 and 118,255.80 is: 177,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.80 : 183,906.90 = 118,255.80 : x
  2. Step 2: Convert to fraction form
    122,575.80/183,906.90 = 118,255.80/x
  3. Step 3: Cross multiply
    122,575.80x = 183,906.90 × 118,255.80
  4. Step 4: Simplify right side
    122,575.80x = 21,748,057,585.02
  5. Step 5: Solve for x
    x = 21,748,057,585.02/122,575.80
  6. Step 6: Final answer
    x = 177,425.38

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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.