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Finding the Fourth Proportional to 121,367.52, 182,051.28 and 38,268

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Solution

The fourth proportional to 121,367.52, 182,051.28 and 38,268 is: 57,402

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,367.52 : 182,051.28 = 38,268 : x
  2. Step 2: Convert to fraction form
    121,367.52/182,051.28 = 38,268/x
  3. Step 3: Cross multiply
    121,367.52x = 182,051.28 × 38,268
  4. Step 4: Simplify right side
    121,367.52x = 6,966,738,383.04
  5. Step 5: Solve for x
    x = 6,966,738,383.04/121,367.52
  6. Step 6: Final answer
    x = 57,402

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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.