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Finding the Fourth Proportional to 113,512.98, 170,268.54 and 42,453.54

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Solution

The fourth proportional to 113,512.98, 170,268.54 and 42,453.54 is: 63,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,512.98 : 170,268.54 = 42,453.54 : x
  2. Step 2: Convert to fraction form
    113,512.98/170,268.54 = 42,453.54/x
  3. Step 3: Cross multiply
    113,512.98x = 170,268.54 × 42,453.54
  4. Step 4: Simplify right side
    113,512.98x = 7,228,502,273.63
  5. Step 5: Solve for x
    x = 7,228,502,273.63/113,512.98
  6. Step 6: Final answer
    x = 63,679.96

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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.