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Finding the Fourth Proportional to 355,310.80, 532,091.40 and 168,103.60

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Solution

The fourth proportional to 355,310.80, 532,091.40 and 168,103.60 is: 251,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,310.80 : 532,091.40 = 168,103.60 : x
  2. Step 2: Convert to fraction form
    355,310.80/532,091.40 = 168,103.60/x
  3. Step 3: Cross multiply
    355,310.80x = 532,091.40 × 168,103.60
  4. Step 4: Simplify right side
    355,310.80x = 89,446,479,869.04
  5. Step 5: Solve for x
    x = 89,446,479,869.04/355,310.80
  6. Step 6: Final answer
    x = 251,741.52

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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.