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Finding the Fourth Proportional to 235,054.31, 324,381.51 and 127,630.89

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Solution

The fourth proportional to 235,054.31, 324,381.51 and 127,630.89 is: 176,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,054.31 : 324,381.51 = 127,630.89 : x
  2. Step 2: Convert to fraction form
    235,054.31/324,381.51 = 127,630.89/x
  3. Step 3: Cross multiply
    235,054.31x = 324,381.51 × 127,630.89
  4. Step 4: Simplify right side
    235,054.31x = 41,401,100,820.84
  5. Step 5: Solve for x
    x = 41,401,100,820.84/235,054.31
  6. Step 6: Final answer
    x = 176,134.20

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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.