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Finding the Fourth Proportional to 302,177.86, 417,013.30 and 166,215.30

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Solution

The fourth proportional to 302,177.86, 417,013.30 and 166,215.30 is: 229,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,177.86 : 417,013.30 = 166,215.30 : x
  2. Step 2: Convert to fraction form
    302,177.86/417,013.30 = 166,215.30/x
  3. Step 3: Cross multiply
    302,177.86x = 417,013.30 × 166,215.30
  4. Step 4: Simplify right side
    302,177.86x = 69,313,990,763.49
  5. Step 5: Solve for x
    x = 69,313,990,763.49/302,177.86
  6. Step 6: Final answer
    x = 229,381.43

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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.