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Finding the Fourth Proportional to 405,091.44, 607,703.04 and 124,608.96

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Solution

The fourth proportional to 405,091.44, 607,703.04 and 124,608.96 is: 186,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,091.44 : 607,703.04 = 124,608.96 : x
  2. Step 2: Convert to fraction form
    405,091.44/607,703.04 = 124,608.96/x
  3. Step 3: Cross multiply
    405,091.44x = 607,703.04 × 124,608.96
  4. Step 4: Simplify right side
    405,091.44x = 75,725,243,803.24
  5. Step 5: Solve for x
    x = 75,725,243,803.24/405,091.44
  6. Step 6: Final answer
    x = 186,933.71

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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.