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Finding the Fourth Proportional to 324,362.54, 486,590.36 and 99,741.86

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Solution

The fourth proportional to 324,362.54, 486,590.36 and 99,741.86 is: 149,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,362.54 : 486,590.36 = 99,741.86 : x
  2. Step 2: Convert to fraction form
    324,362.54/486,590.36 = 99,741.86/x
  3. Step 3: Cross multiply
    324,362.54x = 486,590.36 × 99,741.86
  4. Step 4: Simplify right side
    324,362.54x = 48,533,427,564.47
  5. Step 5: Solve for x
    x = 48,533,427,564.47/324,362.54
  6. Step 6: Final answer
    x = 149,627.10

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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.