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Finding the Fourth Proportional to 405,262.53, 607,960.62 and 124,779.78

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Solution

The fourth proportional to 405,262.53, 607,960.62 and 124,779.78 is: 187,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,262.53 : 607,960.62 = 124,779.78 : x
  2. Step 2: Convert to fraction form
    405,262.53/607,960.62 = 124,779.78/x
  3. Step 3: Cross multiply
    405,262.53x = 607,960.62 × 124,779.78
  4. Step 4: Simplify right side
    405,262.53x = 75,861,192,412.26
  5. Step 5: Solve for x
    x = 75,861,192,412.26/405,262.53
  6. Step 6: Final answer
    x = 187,190.25

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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.