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Finding the Fourth Proportional to 275,166.63, 379,569.06 and 173,030.40

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Solution

The fourth proportional to 275,166.63, 379,569.06 and 173,030.40 is: 238,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,166.63 : 379,569.06 = 173,030.40 : x
  2. Step 2: Convert to fraction form
    275,166.63/379,569.06 = 173,030.40/x
  3. Step 3: Cross multiply
    275,166.63x = 379,569.06 × 173,030.40
  4. Step 4: Simplify right side
    275,166.63x = 65,676,986,279.42
  5. Step 5: Solve for x
    x = 65,676,986,279.42/275,166.63
  6. Step 6: Final answer
    x = 238,680.78

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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.