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Finding the Fourth Proportional to 355,891.60, 533,837.40 and 119,209.60

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Solution

The fourth proportional to 355,891.60, 533,837.40 and 119,209.60 is: 178,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,891.60 : 533,837.40 = 119,209.60 : x
  2. Step 2: Convert to fraction form
    355,891.60/533,837.40 = 119,209.60/x
  3. Step 3: Cross multiply
    355,891.60x = 533,837.40 × 119,209.60
  4. Step 4: Simplify right side
    355,891.60x = 63,638,542,919.04
  5. Step 5: Solve for x
    x = 63,638,542,919.04/355,891.60
  6. Step 6: Final answer
    x = 178,814.40

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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.