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Finding the Fourth Proportional to 288,935, 433,340.92 and 111,383

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Solution

The fourth proportional to 288,935, 433,340.92 and 111,383 is: 167,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,935 : 433,340.92 = 111,383 : x
  2. Step 2: Convert to fraction form
    288,935/433,340.92 = 111,383/x
  3. Step 3: Cross multiply
    288,935x = 433,340.92 × 111,383
  4. Step 4: Simplify right side
    288,935x = 48,266,811,692.36
  5. Step 5: Solve for x
    x = 48,266,811,692.36/288,935
  6. Step 6: Final answer
    x = 167,050.76

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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.