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Finding the Fourth Proportional to 71,090.94, 98,121.58 and 50,970.54

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Solution

The fourth proportional to 71,090.94, 98,121.58 and 50,970.54 is: 70,350.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,090.94 : 98,121.58 = 50,970.54 : x
  2. Step 2: Convert to fraction form
    71,090.94/98,121.58 = 50,970.54/x
  3. Step 3: Cross multiply
    71,090.94x = 98,121.58 × 50,970.54
  4. Step 4: Simplify right side
    71,090.94x = 5,001,309,918.25
  5. Step 5: Solve for x
    x = 5,001,309,918.25/71,090.94
  6. Step 6: Final answer
    x = 70,350.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.