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Finding the Fourth Proportional to 294,522.40, 406,435.08 and 173,668.78

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Solution

The fourth proportional to 294,522.40, 406,435.08 and 173,668.78 is: 239,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,522.40 : 406,435.08 = 173,668.78 : x
  2. Step 2: Convert to fraction form
    294,522.40/406,435.08 = 173,668.78/x
  3. Step 3: Cross multiply
    294,522.40x = 406,435.08 × 173,668.78
  4. Step 4: Simplify right side
    294,522.40x = 70,585,084,492.80
  5. Step 5: Solve for x
    x = 70,585,084,492.80/294,522.40
  6. Step 6: Final answer
    x = 239,659.48

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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.