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Finding the Fourth Proportional to 134,437.86, 185,447.37 and 84,049.38

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Solution

The fourth proportional to 134,437.86, 185,447.37 and 84,049.38 is: 115,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,437.86 : 185,447.37 = 84,049.38 : x
  2. Step 2: Convert to fraction form
    134,437.86/185,447.37 = 84,049.38/x
  3. Step 3: Cross multiply
    134,437.86x = 185,447.37 × 84,049.38
  4. Step 4: Simplify right side
    134,437.86x = 15,586,736,786.32
  5. Step 5: Solve for x
    x = 15,586,736,786.32/134,437.86
  6. Step 6: Final answer
    x = 115,940.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.