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Finding the Fourth Proportional to 124,394.76, 186,621.30 and 41,288.76

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Solution

The fourth proportional to 124,394.76, 186,621.30 and 41,288.76 is: 61,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,394.76 : 186,621.30 = 41,288.76 : x
  2. Step 2: Convert to fraction form
    124,394.76/186,621.30 = 41,288.76/x
  3. Step 3: Cross multiply
    124,394.76x = 186,621.30 × 41,288.76
  4. Step 4: Simplify right side
    124,394.76x = 7,705,362,066.59
  5. Step 5: Solve for x
    x = 7,705,362,066.59/124,394.76
  6. Step 6: Final answer
    x = 61,942.82

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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.