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Finding the Fourth Proportional to 192,004.10, 288,006.15 and 172,977.20

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Solution

The fourth proportional to 192,004.10, 288,006.15 and 172,977.20 is: 259,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,004.10 : 288,006.15 = 172,977.20 : x
  2. Step 2: Convert to fraction form
    192,004.10/288,006.15 = 172,977.20/x
  3. Step 3: Cross multiply
    192,004.10x = 288,006.15 × 172,977.20
  4. Step 4: Simplify right side
    192,004.10x = 49,818,497,409.78
  5. Step 5: Solve for x
    x = 49,818,497,409.78/192,004.10
  6. Step 6: Final answer
    x = 259,465.80

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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.