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Finding the Fourth Proportional to 192,005.80, 288,008.70 and 185,554.60

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Solution

The fourth proportional to 192,005.80, 288,008.70 and 185,554.60 is: 278,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,005.80 : 288,008.70 = 185,554.60 : x
  2. Step 2: Convert to fraction form
    192,005.80/288,008.70 = 185,554.60/x
  3. Step 3: Cross multiply
    192,005.80x = 288,008.70 × 185,554.60
  4. Step 4: Simplify right side
    192,005.80x = 53,441,339,125.02
  5. Step 5: Solve for x
    x = 53,441,339,125.02/192,005.80
  6. Step 6: Final answer
    x = 278,331.90

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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.