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Finding the Fourth Proportional to 355,242, 533,125.44 and 168,253.50

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Solution

The fourth proportional to 355,242, 533,125.44 and 168,253.50 is: 252,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,242 : 533,125.44 = 168,253.50 : x
  2. Step 2: Convert to fraction form
    355,242/533,125.44 = 168,253.50/x
  3. Step 3: Cross multiply
    355,242x = 533,125.44 × 168,253.50
  4. Step 4: Simplify right side
    355,242x = 89,700,221,219.04
  5. Step 5: Solve for x
    x = 89,700,221,219.04/355,242
  6. Step 6: Final answer
    x = 252,504.55

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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.