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Finding the Fourth Proportional to 212,440.32, 292,978.56 and 167,650.56

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Solution

The fourth proportional to 212,440.32, 292,978.56 and 167,650.56 is: 231,208.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,440.32 : 292,978.56 = 167,650.56 : x
  2. Step 2: Convert to fraction form
    212,440.32/292,978.56 = 167,650.56/x
  3. Step 3: Cross multiply
    212,440.32x = 292,978.56 × 167,650.56
  4. Step 4: Simplify right side
    212,440.32x = 49,118,019,651.99
  5. Step 5: Solve for x
    x = 49,118,019,651.99/212,440.32
  6. Step 6: Final answer
    x = 231,208.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.