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Finding the Fourth Proportional to 169,672.80, 254,509.20 and 153,343.20

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Solution

The fourth proportional to 169,672.80, 254,509.20 and 153,343.20 is: 230,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,672.80 : 254,509.20 = 153,343.20 : x
  2. Step 2: Convert to fraction form
    169,672.80/254,509.20 = 153,343.20/x
  3. Step 3: Cross multiply
    169,672.80x = 254,509.20 × 153,343.20
  4. Step 4: Simplify right side
    169,672.80x = 39,027,255,157.44
  5. Step 5: Solve for x
    x = 39,027,255,157.44/169,672.80
  6. Step 6: Final answer
    x = 230,014.80

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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.