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Finding the Fourth Proportional to 165,409.40, 248,114.10 and 151,412.60

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Solution

The fourth proportional to 165,409.40, 248,114.10 and 151,412.60 is: 227,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,409.40 : 248,114.10 = 151,412.60 : x
  2. Step 2: Convert to fraction form
    165,409.40/248,114.10 = 151,412.60/x
  3. Step 3: Cross multiply
    165,409.40x = 248,114.10 × 151,412.60
  4. Step 4: Simplify right side
    165,409.40x = 37,567,600,977.66
  5. Step 5: Solve for x
    x = 37,567,600,977.66/165,409.40
  6. Step 6: Final answer
    x = 227,118.90

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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.