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Finding the Fourth Proportional to 324,070, 486,084.36 and 121,626.16

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Solution

The fourth proportional to 324,070, 486,084.36 and 121,626.16 is: 182,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,070 : 486,084.36 = 121,626.16 : x
  2. Step 2: Convert to fraction form
    324,070/486,084.36 = 121,626.16/x
  3. Step 3: Cross multiply
    324,070x = 486,084.36 × 121,626.16
  4. Step 4: Simplify right side
    324,070x = 59,120,574,142.86
  5. Step 5: Solve for x
    x = 59,120,574,142.86/324,070
  6. Step 6: Final answer
    x = 182,431.49

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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.