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Finding the Fourth Proportional to 76,371.99, 105,396.66 and 50,837.24

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Solution

The fourth proportional to 76,371.99, 105,396.66 and 50,837.24 is: 70,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,371.99 : 105,396.66 = 50,837.24 : x
  2. Step 2: Convert to fraction form
    76,371.99/105,396.66 = 50,837.24/x
  3. Step 3: Cross multiply
    76,371.99x = 105,396.66 × 50,837.24
  4. Step 4: Simplify right side
    76,371.99x = 5,358,075,299.62
  5. Step 5: Solve for x
    x = 5,358,075,299.62/76,371.99
  6. Step 6: Final answer
    x = 70,157.60

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1.5x scale

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.