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Finding the Fourth Proportional to 355,215, 533,085.48 and 168,227.04

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Solution

The fourth proportional to 355,215, 533,085.48 and 168,227.04 is: 252,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,215 : 533,085.48 = 168,227.04 : x
  2. Step 2: Convert to fraction form
    355,215/533,085.48 = 168,227.04/x
  3. Step 3: Cross multiply
    355,215x = 533,085.48 × 168,227.04
  4. Step 4: Simplify right side
    355,215x = 89,679,392,367.38
  5. Step 5: Solve for x
    x = 89,679,392,367.38/355,215
  6. Step 6: Final answer
    x = 252,465.11

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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.