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Finding the Fourth Proportional to 118,625.60, 177,784.80 and 104,801.60

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Solution

The fourth proportional to 118,625.60, 177,784.80 and 104,801.60 is: 157,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,625.60 : 177,784.80 = 104,801.60 : x
  2. Step 2: Convert to fraction form
    118,625.60/177,784.80 = 104,801.60/x
  3. Step 3: Cross multiply
    118,625.60x = 177,784.80 × 104,801.60
  4. Step 4: Simplify right side
    118,625.60x = 18,632,131,495.68
  5. Step 5: Solve for x
    x = 18,632,131,495.68/118,625.60
  6. Step 6: Final answer
    x = 157,066.70

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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.