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Finding the Fourth Proportional to 177,813.30, 266,201.55 and 172,629.30

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Solution

The fourth proportional to 177,813.30, 266,201.55 and 172,629.30 is: 258,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,813.30 : 266,201.55 = 172,629.30 : x
  2. Step 2: Convert to fraction form
    177,813.30/266,201.55 = 172,629.30/x
  3. Step 3: Cross multiply
    177,813.30x = 266,201.55 × 172,629.30
  4. Step 4: Simplify right side
    177,813.30x = 45,954,187,235.42
  5. Step 5: Solve for x
    x = 45,954,187,235.42/177,813.30
  6. Step 6: Final answer
    x = 258,440.66

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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.