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Finding the Fourth Proportional to 235,320.90, 324,744.84 and 127,890.90

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Solution

The fourth proportional to 235,320.90, 324,744.84 and 127,890.90 is: 176,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,320.90 : 324,744.84 = 127,890.90 : x
  2. Step 2: Convert to fraction form
    235,320.90/324,744.84 = 127,890.90/x
  3. Step 3: Cross multiply
    235,320.90x = 324,744.84 × 127,890.90
  4. Step 4: Simplify right side
    235,320.90x = 41,531,909,857.96
  5. Step 5: Solve for x
    x = 41,531,909,857.96/235,320.90
  6. Step 6: Final answer
    x = 176,490.53

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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.