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Finding the Fourth Proportional to 294,290.60, 441,435.90 and 72,674.60

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Solution

The fourth proportional to 294,290.60, 441,435.90 and 72,674.60 is: 109,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,290.60 : 441,435.90 = 72,674.60 : x
  2. Step 2: Convert to fraction form
    294,290.60/441,435.90 = 72,674.60/x
  3. Step 3: Cross multiply
    294,290.60x = 441,435.90 × 72,674.60
  4. Step 4: Simplify right side
    294,290.60x = 32,081,177,458.14
  5. Step 5: Solve for x
    x = 32,081,177,458.14/294,290.60
  6. Step 6: Final answer
    x = 109,011.90

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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.