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Finding the Fourth Proportional to 125,364.11, 188,024.29 and 57,890.39

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Solution

The fourth proportional to 125,364.11, 188,024.29 and 57,890.39 is: 86,825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,364.11 : 188,024.29 = 57,890.39 : x
  2. Step 2: Convert to fraction form
    125,364.11/188,024.29 = 57,890.39/x
  3. Step 3: Cross multiply
    125,364.11x = 188,024.29 × 57,890.39
  4. Step 4: Simplify right side
    125,364.11x = 10,884,798,392.73
  5. Step 5: Solve for x
    x = 10,884,798,392.73/125,364.11
  6. Step 6: Final answer
    x = 86,825.48

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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.