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Finding the Fourth Proportional to 208,023.30, 311,597.55 and 173,031.30

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Solution

The fourth proportional to 208,023.30, 311,597.55 and 173,031.30 is: 259,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023.30 : 311,597.55 = 173,031.30 : x
  2. Step 2: Convert to fraction form
    208,023.30/311,597.55 = 173,031.30/x
  3. Step 3: Cross multiply
    208,023.30x = 311,597.55 × 173,031.30
  4. Step 4: Simplify right side
    208,023.30x = 53,916,129,153.32
  5. Step 5: Solve for x
    x = 53,916,129,153.32/208,023.30
  6. Step 6: Final answer
    x = 259,183.13

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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.