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Finding the Fourth Proportional to 405,095.54, 607,590.03 and 124,589.30

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Solution

The fourth proportional to 405,095.54, 607,590.03 and 124,589.30 is: 186,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,095.54 : 607,590.03 = 124,589.30 : x
  2. Step 2: Convert to fraction form
    405,095.54/607,590.03 = 124,589.30/x
  3. Step 3: Cross multiply
    405,095.54x = 607,590.03 × 124,589.30
  4. Step 4: Simplify right side
    405,095.54x = 75,699,216,524.68
  5. Step 5: Solve for x
    x = 75,699,216,524.68/405,095.54
  6. Step 6: Final answer
    x = 186,867.56

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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.