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Finding the Fourth Proportional to 207,483.68, 311,254.32 and 67,196.96

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Solution

The fourth proportional to 207,483.68, 311,254.32 and 67,196.96 is: 100,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,483.68 : 311,254.32 = 67,196.96 : x
  2. Step 2: Convert to fraction form
    207,483.68/311,254.32 = 67,196.96/x
  3. Step 3: Cross multiply
    207,483.68x = 311,254.32 × 67,196.96
  4. Step 4: Simplify right side
    207,483.68x = 20,915,344,090.87
  5. Step 5: Solve for x
    x = 20,915,344,090.87/207,483.68
  6. Step 6: Final answer
    x = 100,804.77

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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.