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Finding the Fourth Proportional to 304,842.30, 457,263.45 and 127,347.90

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Solution

The fourth proportional to 304,842.30, 457,263.45 and 127,347.90 is: 191,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,842.30 : 457,263.45 = 127,347.90 : x
  2. Step 2: Convert to fraction form
    304,842.30/457,263.45 = 127,347.90/x
  3. Step 3: Cross multiply
    304,842.30x = 457,263.45 × 127,347.90
  4. Step 4: Simplify right side
    304,842.30x = 58,231,540,104.26
  5. Step 5: Solve for x
    x = 58,231,540,104.26/304,842.30
  6. Step 6: Final answer
    x = 191,021.85

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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.