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Finding the Fourth Proportional to 118,638.90, 177,906.51 and 35,513.46

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Solution

The fourth proportional to 118,638.90, 177,906.51 and 35,513.46 is: 53,254.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,638.90 : 177,906.51 = 35,513.46 : x
  2. Step 2: Convert to fraction form
    118,638.90/177,906.51 = 35,513.46/x
  3. Step 3: Cross multiply
    118,638.90x = 177,906.51 × 35,513.46
  4. Step 4: Simplify right side
    118,638.90x = 6,318,075,726.62
  5. Step 5: Solve for x
    x = 6,318,075,726.62/118,638.90
  6. Step 6: Final answer
    x = 53,254.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.