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Finding the Fourth Proportional to 243,029.28, 364,554.96 and 74,537.28

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Solution

The fourth proportional to 243,029.28, 364,554.96 and 74,537.28 is: 111,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,029.28 : 364,554.96 = 74,537.28 : x
  2. Step 2: Convert to fraction form
    243,029.28/364,554.96 = 74,537.28/x
  3. Step 3: Cross multiply
    243,029.28x = 364,554.96 × 74,537.28
  4. Step 4: Simplify right side
    243,029.28x = 27,172,935,128.91
  5. Step 5: Solve for x
    x = 27,172,935,128.91/243,029.28
  6. Step 6: Final answer
    x = 111,809.31

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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.