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Finding the Fourth Proportional to 192,562.80, 288,455.40 and 109,359.60

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Solution

The fourth proportional to 192,562.80, 288,455.40 and 109,359.60 is: 163,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,562.80 : 288,455.40 = 109,359.60 : x
  2. Step 2: Convert to fraction form
    192,562.80/288,455.40 = 109,359.60/x
  3. Step 3: Cross multiply
    192,562.80x = 288,455.40 × 109,359.60
  4. Step 4: Simplify right side
    192,562.80x = 31,545,367,161.84
  5. Step 5: Solve for x
    x = 31,545,367,161.84/192,562.80
  6. Step 6: Final answer
    x = 163,818.59

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1.5x scale

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.