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Finding the Fourth Proportional to 168,968, 253,172.14 and 118,803.02

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Solution

The fourth proportional to 168,968, 253,172.14 and 118,803.02 is: 178,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,968 : 253,172.14 = 118,803.02 : x
  2. Step 2: Convert to fraction form
    168,968/253,172.14 = 118,803.02/x
  3. Step 3: Cross multiply
    168,968x = 253,172.14 × 118,803.02
  4. Step 4: Simplify right side
    168,968x = 30,077,614,811.86
  5. Step 5: Solve for x
    x = 30,077,614,811.86/168,968
  6. Step 6: Final answer
    x = 178,007.76

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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.