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Finding the Fourth Proportional to 294,861.60, 442,292.40 and 126,462.60

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Solution

The fourth proportional to 294,861.60, 442,292.40 and 126,462.60 is: 189,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,861.60 : 442,292.40 = 126,462.60 : x
  2. Step 2: Convert to fraction form
    294,861.60/442,292.40 = 126,462.60/x
  3. Step 3: Cross multiply
    294,861.60x = 442,292.40 × 126,462.60
  4. Step 4: Simplify right side
    294,861.60x = 55,933,446,864.24
  5. Step 5: Solve for x
    x = 55,933,446,864.24/294,861.60
  6. Step 6: Final answer
    x = 189,693.90

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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.