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Finding the Fourth Proportional to 61,208.60, 91,812.90 and 50,273.60

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Solution

The fourth proportional to 61,208.60, 91,812.90 and 50,273.60 is: 75,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,208.60 : 91,812.90 = 50,273.60 : x
  2. Step 2: Convert to fraction form
    61,208.60/91,812.90 = 50,273.60/x
  3. Step 3: Cross multiply
    61,208.60x = 91,812.90 × 50,273.60
  4. Step 4: Simplify right side
    61,208.60x = 4,615,765,009.44
  5. Step 5: Solve for x
    x = 4,615,765,009.44/61,208.60
  6. Step 6: Final answer
    x = 75,410.40

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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.