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Finding the Fourth Proportional to 201,693.10, 302,078.85 and 118,749.10

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Solution

The fourth proportional to 201,693.10, 302,078.85 and 118,749.10 is: 177,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,693.10 : 302,078.85 = 118,749.10 : x
  2. Step 2: Convert to fraction form
    201,693.10/302,078.85 = 118,749.10/x
  3. Step 3: Cross multiply
    201,693.10x = 302,078.85 × 118,749.10
  4. Step 4: Simplify right side
    201,693.10x = 35,871,591,566.54
  5. Step 5: Solve for x
    x = 35,871,591,566.54/201,693.10
  6. Step 6: Final answer
    x = 177,852.35

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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.