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Finding the Fourth Proportional to 139,596.10, 209,394.15 and 133,035.10

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Solution

The fourth proportional to 139,596.10, 209,394.15 and 133,035.10 is: 199,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,596.10 : 209,394.15 = 133,035.10 : x
  2. Step 2: Convert to fraction form
    139,596.10/209,394.15 = 133,035.10/x
  3. Step 3: Cross multiply
    139,596.10x = 209,394.15 × 133,035.10
  4. Step 4: Simplify right side
    139,596.10x = 27,856,771,684.67
  5. Step 5: Solve for x
    x = 27,856,771,684.67/139,596.10
  6. Step 6: Final answer
    x = 199,552.65

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1.5x scale

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.