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Finding the Fourth Proportional to 169,991.40, 254,987.10 and 151,620.60

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Solution

The fourth proportional to 169,991.40, 254,987.10 and 151,620.60 is: 227,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,991.40 : 254,987.10 = 151,620.60 : x
  2. Step 2: Convert to fraction form
    169,991.40/254,987.10 = 151,620.60/x
  3. Step 3: Cross multiply
    169,991.40x = 254,987.10 × 151,620.60
  4. Step 4: Simplify right side
    169,991.40x = 38,661,297,094.26
  5. Step 5: Solve for x
    x = 38,661,297,094.26/169,991.40
  6. Step 6: Final answer
    x = 227,430.90

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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.