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Finding the Fourth Proportional to 213,978.05, 295,299.07 and 118,484.83

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Solution

The fourth proportional to 213,978.05, 295,299.07 and 118,484.83 is: 163,514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,978.05 : 295,299.07 = 118,484.83 : x
  2. Step 2: Convert to fraction form
    213,978.05/295,299.07 = 118,484.83/x
  3. Step 3: Cross multiply
    213,978.05x = 295,299.07 × 118,484.83
  4. Step 4: Simplify right side
    213,978.05x = 34,988,458,519.96
  5. Step 5: Solve for x
    x = 34,988,458,519.96/213,978.05
  6. Step 6: Final answer
    x = 163,514.24

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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.