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Finding the Fourth Proportional to 99,396.21, 149,126.72 and 46,811.01

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Solution

The fourth proportional to 99,396.21, 149,126.72 and 46,811.01 is: 70,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,396.21 : 149,126.72 = 46,811.01 : x
  2. Step 2: Convert to fraction form
    99,396.21/149,126.72 = 46,811.01/x
  3. Step 3: Cross multiply
    99,396.21x = 149,126.72 × 46,811.01
  4. Step 4: Simplify right side
    99,396.21x = 6,980,772,147.13
  5. Step 5: Solve for x
    x = 6,980,772,147.13/99,396.21
  6. Step 6: Final answer
    x = 70,231.77

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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.