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Finding the Fourth Proportional to 169,708.40, 254,562.60 and 143,464.40

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Solution

The fourth proportional to 169,708.40, 254,562.60 and 143,464.40 is: 215,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,708.40 : 254,562.60 = 143,464.40 : x
  2. Step 2: Convert to fraction form
    169,708.40/254,562.60 = 143,464.40/x
  3. Step 3: Cross multiply
    169,708.40x = 254,562.60 × 143,464.40
  4. Step 4: Simplify right side
    169,708.40x = 36,520,670,671.44
  5. Step 5: Solve for x
    x = 36,520,670,671.44/169,708.40
  6. Step 6: Final answer
    x = 215,196.60

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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.