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Finding the Fourth Proportional to 235,628.60, 353,615.70 and 156,716.60

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Solution

The fourth proportional to 235,628.60, 353,615.70 and 156,716.60 is: 235,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,628.60 : 353,615.70 = 156,716.60 : x
  2. Step 2: Convert to fraction form
    235,628.60/353,615.70 = 156,716.60/x
  3. Step 3: Cross multiply
    235,628.60x = 353,615.70 × 156,716.60
  4. Step 4: Simplify right side
    235,628.60x = 55,417,450,210.62
  5. Step 5: Solve for x
    x = 55,417,450,210.62/235,628.60
  6. Step 6: Final answer
    x = 235,189.83

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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.