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Finding the Fourth Proportional to 289,794.08, 399,941.88 and 168,974.48

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Solution

The fourth proportional to 289,794.08, 399,941.88 and 168,974.48 is: 233,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,794.08 : 399,941.88 = 168,974.48 : x
  2. Step 2: Convert to fraction form
    289,794.08/399,941.88 = 168,974.48/x
  3. Step 3: Cross multiply
    289,794.08x = 399,941.88 × 168,974.48
  4. Step 4: Simplify right side
    289,794.08x = 67,579,971,203.22
  5. Step 5: Solve for x
    x = 67,579,971,203.22/289,794.08
  6. Step 6: Final answer
    x = 233,199.97

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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.