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Finding the Fourth Proportional to 101,955.77, 152,992.89 and 41,990.28

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Solution

The fourth proportional to 101,955.77, 152,992.89 and 41,990.28 is: 63,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,955.77 : 152,992.89 = 41,990.28 : x
  2. Step 2: Convert to fraction form
    101,955.77/152,992.89 = 41,990.28/x
  3. Step 3: Cross multiply
    101,955.77x = 152,992.89 × 41,990.28
  4. Step 4: Simplify right side
    101,955.77x = 6,424,213,314.19
  5. Step 5: Solve for x
    x = 6,424,213,314.19/101,955.77
  6. Step 6: Final answer
    x = 63,009.81

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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.