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Finding the Fourth Proportional to 104,112.48, 155,805.60 and 85,173.60

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Solution

The fourth proportional to 104,112.48, 155,805.60 and 85,173.60 is: 127,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,112.48 : 155,805.60 = 85,173.60 : x
  2. Step 2: Convert to fraction form
    104,112.48/155,805.60 = 85,173.60/x
  3. Step 3: Cross multiply
    104,112.48x = 155,805.60 × 85,173.60
  4. Step 4: Simplify right side
    104,112.48x = 13,270,523,852.16
  5. Step 5: Solve for x
    x = 13,270,523,852.16/104,112.48
  6. Step 6: Final answer
    x = 127,463.33

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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.