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Finding the Fourth Proportional to 353,093.80, 529,179.90 and 163,532.20

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Solution

The fourth proportional to 353,093.80, 529,179.90 and 163,532.20 is: 245,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,093.80 : 529,179.90 = 163,532.20 : x
  2. Step 2: Convert to fraction form
    353,093.80/529,179.90 = 163,532.20/x
  3. Step 3: Cross multiply
    353,093.80x = 529,179.90 × 163,532.20
  4. Step 4: Simplify right side
    353,093.80x = 86,537,953,242.78
  5. Step 5: Solve for x
    x = 86,537,953,242.78/353,093.80
  6. Step 6: Final answer
    x = 245,084.88

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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.