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Finding the Fourth Proportional to 124,990.56, 187,485.84 and 41,942.88

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Solution

The fourth proportional to 124,990.56, 187,485.84 and 41,942.88 is: 62,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,990.56 : 187,485.84 = 41,942.88 : x
  2. Step 2: Convert to fraction form
    124,990.56/187,485.84 = 41,942.88/x
  3. Step 3: Cross multiply
    124,990.56x = 187,485.84 × 41,942.88
  4. Step 4: Simplify right side
    124,990.56x = 7,863,696,088.82
  5. Step 5: Solve for x
    x = 7,863,696,088.82/124,990.56
  6. Step 6: Final answer
    x = 62,914.32

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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.