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Finding the Fourth Proportional to 477,172.33, 715,739.79 and 161,629.22

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Solution

The fourth proportional to 477,172.33, 715,739.79 and 161,629.22 is: 242,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,172.33 : 715,739.79 = 161,629.22 : x
  2. Step 2: Convert to fraction form
    477,172.33/715,739.79 = 161,629.22/x
  3. Step 3: Cross multiply
    477,172.33x = 715,739.79 × 161,629.22
  4. Step 4: Simplify right side
    477,172.33x = 115,684,465,770.01
  5. Step 5: Solve for x
    x = 115,684,465,770.01/477,172.33
  6. Step 6: Final answer
    x = 242,437.50

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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.