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Finding the Fourth Proportional to 355,911.48, 533,495.28 and 119,059.32

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Solution

The fourth proportional to 355,911.48, 533,495.28 and 119,059.32 is: 178,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,911.48 : 533,495.28 = 119,059.32 : x
  2. Step 2: Convert to fraction form
    355,911.48/533,495.28 = 119,059.32/x
  3. Step 3: Cross multiply
    355,911.48x = 533,495.28 × 119,059.32
  4. Step 4: Simplify right side
    355,911.48x = 63,517,585,260.01
  5. Step 5: Solve for x
    x = 63,517,585,260.01/355,911.48
  6. Step 6: Final answer
    x = 178,464.56

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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.