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Finding the Fourth Proportional to 183,419.10, 275,128.65 and 165,704.40

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Solution

The fourth proportional to 183,419.10, 275,128.65 and 165,704.40 is: 248,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,419.10 : 275,128.65 = 165,704.40 : x
  2. Step 2: Convert to fraction form
    183,419.10/275,128.65 = 165,704.40/x
  3. Step 3: Cross multiply
    183,419.10x = 275,128.65 × 165,704.40
  4. Step 4: Simplify right side
    183,419.10x = 45,590,027,871.06
  5. Step 5: Solve for x
    x = 45,590,027,871.06/183,419.10
  6. Step 6: Final answer
    x = 248,556.60

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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.