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Finding the Fourth Proportional to 101,665.99, 152,503.85 and 49,119.67

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Solution

The fourth proportional to 101,665.99, 152,503.85 and 49,119.67 is: 73,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,665.99 : 152,503.85 = 49,119.67 : x
  2. Step 2: Convert to fraction form
    101,665.99/152,503.85 = 49,119.67/x
  3. Step 3: Cross multiply
    101,665.99x = 152,503.85 × 49,119.67
  4. Step 4: Simplify right side
    101,665.99x = 7,490,938,540.13
  5. Step 5: Solve for x
    x = 7,490,938,540.13/101,665.99
  6. Step 6: Final answer
    x = 73,681.85

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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.