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Finding the Fourth Proportional to 112,676.67, 155,492.46 and 62,375.67

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Solution

The fourth proportional to 112,676.67, 155,492.46 and 62,375.67 is: 86,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,676.67 : 155,492.46 = 62,375.67 : x
  2. Step 2: Convert to fraction form
    112,676.67/155,492.46 = 62,375.67/x
  3. Step 3: Cross multiply
    112,676.67x = 155,492.46 × 62,375.67
  4. Step 4: Simplify right side
    112,676.67x = 9,698,946,372.45
  5. Step 5: Solve for x
    x = 9,698,946,372.45/112,676.67
  6. Step 6: Final answer
    x = 86,077.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.