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Finding the Fourth Proportional to 298,104.80, 411,363.45 and 162,135.98

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Solution

The fourth proportional to 298,104.80, 411,363.45 and 162,135.98 is: 223,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,104.80 : 411,363.45 = 162,135.98 : x
  2. Step 2: Convert to fraction form
    298,104.80/411,363.45 = 162,135.98/x
  3. Step 3: Cross multiply
    298,104.80x = 411,363.45 × 162,135.98
  4. Step 4: Simplify right side
    298,104.80x = 66,696,814,045.11
  5. Step 5: Solve for x
    x = 66,696,814,045.11/298,104.80
  6. Step 6: Final answer
    x = 223,736.13

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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.