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Finding the Fourth Proportional to 118,795.68, 178,193.46 and 47,718.27

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Solution

The fourth proportional to 118,795.68, 178,193.46 and 47,718.27 is: 71,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,795.68 : 178,193.46 = 47,718.27 : x
  2. Step 2: Convert to fraction form
    118,795.68/178,193.46 = 47,718.27/x
  3. Step 3: Cross multiply
    118,795.68x = 178,193.46 × 47,718.27
  4. Step 4: Simplify right side
    118,795.68x = 8,503,083,636.51
  5. Step 5: Solve for x
    x = 8,503,083,636.51/118,795.68
  6. Step 6: Final answer
    x = 71,577.38

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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.