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Finding the Fourth Proportional to 99,136.67, 148,852.67 and 40,087.67

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Solution

The fourth proportional to 99,136.67, 148,852.67 and 40,087.67 is: 60,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,136.67 : 148,852.67 = 40,087.67 : x
  2. Step 2: Convert to fraction form
    99,136.67/148,852.67 = 40,087.67/x
  3. Step 3: Cross multiply
    99,136.67x = 148,852.67 × 40,087.67
  4. Step 4: Simplify right side
    99,136.67x = 5,967,155,768.88
  5. Step 5: Solve for x
    x = 5,967,155,768.88/99,136.67
  6. Step 6: Final answer
    x = 60,191.21

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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.