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Finding the Fourth Proportional to 219,646.69, 329,351.64 and 118,498.98

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Solution

The fourth proportional to 219,646.69, 329,351.64 and 118,498.98 is: 177,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,646.69 : 329,351.64 = 118,498.98 : x
  2. Step 2: Convert to fraction form
    219,646.69/329,351.64 = 118,498.98/x
  3. Step 3: Cross multiply
    219,646.69x = 329,351.64 × 118,498.98
  4. Step 4: Simplify right side
    219,646.69x = 39,027,833,401.33
  5. Step 5: Solve for x
    x = 39,027,833,401.33/219,646.69
  6. Step 6: Final answer
    x = 177,684.60

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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.