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Finding the Fourth Proportional to 118,975.68, 178,274.16 and 62,813.76

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Solution

The fourth proportional to 118,975.68, 178,274.16 and 62,813.76 is: 94,120.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,975.68 : 178,274.16 = 62,813.76 : x
  2. Step 2: Convert to fraction form
    118,975.68/178,274.16 = 62,813.76/x
  3. Step 3: Cross multiply
    118,975.68x = 178,274.16 × 62,813.76
  4. Step 4: Simplify right side
    118,975.68x = 11,198,070,300.44
  5. Step 5: Solve for x
    x = 11,198,070,300.44/118,975.68
  6. Step 6: Final answer
    x = 94,120.67

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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.