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Finding the Fourth Proportional to 140,556.10, 210,834.15 and 134,335.30

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Solution

The fourth proportional to 140,556.10, 210,834.15 and 134,335.30 is: 201,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,556.10 : 210,834.15 = 134,335.30 : x
  2. Step 2: Convert to fraction form
    140,556.10/210,834.15 = 134,335.30/x
  3. Step 3: Cross multiply
    140,556.10x = 210,834.15 × 134,335.30
  4. Step 4: Simplify right side
    140,556.10x = 28,322,468,790.50
  5. Step 5: Solve for x
    x = 28,322,468,790.50/140,556.10
  6. Step 6: Final answer
    x = 201,502.95

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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.