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Finding the Fourth Proportional to 421,661.00, 632,452.30 and 118,082.63

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Solution

The fourth proportional to 421,661.00, 632,452.30 and 118,082.63 is: 177,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,661.00 : 632,452.30 = 118,082.63 : x
  2. Step 2: Convert to fraction form
    421,661.00/632,452.30 = 118,082.63/x
  3. Step 3: Cross multiply
    421,661.00x = 632,452.30 × 118,082.63
  4. Step 4: Simplify right side
    421,661.00x = 74,681,627,180.87
  5. Step 5: Solve for x
    x = 74,681,627,180.87/421,661.00
  6. Step 6: Final answer
    x = 177,112.96

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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.