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Finding the Fourth Proportional to 176,198.61, 243,028.47 and 161,709.46

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Solution

The fourth proportional to 176,198.61, 243,028.47 and 161,709.46 is: 223,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,198.61 : 243,028.47 = 161,709.46 : x
  2. Step 2: Convert to fraction form
    176,198.61/243,028.47 = 161,709.46/x
  3. Step 3: Cross multiply
    176,198.61x = 243,028.47 × 161,709.46
  4. Step 4: Simplify right side
    176,198.61x = 39,300,002,648.33
  5. Step 5: Solve for x
    x = 39,300,002,648.33/176,198.61
  6. Step 6: Final answer
    x = 223,043.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.