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Finding the Fourth Proportional to 235,034.60, 324,334.56 and 136,947.68

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Solution

The fourth proportional to 235,034.60, 324,334.56 and 136,947.68 is: 188,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,034.60 : 324,334.56 = 136,947.68 : x
  2. Step 2: Convert to fraction form
    235,034.60/324,334.56 = 136,947.68/x
  3. Step 3: Cross multiply
    235,034.60x = 324,334.56 × 136,947.68
  4. Step 4: Simplify right side
    235,034.60x = 44,416,865,535.82
  5. Step 5: Solve for x
    x = 44,416,865,535.82/235,034.60
  6. Step 6: Final answer
    x = 188,980.11

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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.