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Finding the Fourth Proportional to 245,129.60, 367,780.80 and 236,489.60

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Solution

The fourth proportional to 245,129.60, 367,780.80 and 236,489.60 is: 354,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,129.60 : 367,780.80 = 236,489.60 : x
  2. Step 2: Convert to fraction form
    245,129.60/367,780.80 = 236,489.60/x
  3. Step 3: Cross multiply
    245,129.60x = 367,780.80 × 236,489.60
  4. Step 4: Simplify right side
    245,129.60x = 86,976,334,279.68
  5. Step 5: Solve for x
    x = 86,976,334,279.68/245,129.60
  6. Step 6: Final answer
    x = 354,817.75

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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.