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Finding the Fourth Proportional to 124,006, 186,009 and 40,906.48

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Solution

The fourth proportional to 124,006, 186,009 and 40,906.48 is: 61,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,006 : 186,009 = 40,906.48 : x
  2. Step 2: Convert to fraction form
    124,006/186,009 = 40,906.48/x
  3. Step 3: Cross multiply
    124,006x = 186,009 × 40,906.48
  4. Step 4: Simplify right side
    124,006x = 7,608,973,438.32
  5. Step 5: Solve for x
    x = 7,608,973,438.32/124,006
  6. Step 6: Final answer
    x = 61,359.72

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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.