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Finding the Fourth Proportional to 235,412.39, 324,871.16 and 127,982.50

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Solution

The fourth proportional to 235,412.39, 324,871.16 and 127,982.50 is: 176,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,412.39 : 324,871.16 = 127,982.50 : x
  2. Step 2: Convert to fraction form
    235,412.39/324,871.16 = 127,982.50/x
  3. Step 3: Cross multiply
    235,412.39x = 324,871.16 × 127,982.50
  4. Step 4: Simplify right side
    235,412.39x = 41,577,821,782.61
  5. Step 5: Solve for x
    x = 41,577,821,782.61/235,412.39
  6. Step 6: Final answer
    x = 176,616.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.