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Finding the Fourth Proportional to 333,644.72, 500,663.64 and 123,429.20

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Solution

The fourth proportional to 333,644.72, 500,663.64 and 123,429.20 is: 185,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,644.72 : 500,663.64 = 123,429.20 : x
  2. Step 2: Convert to fraction form
    333,644.72/500,663.64 = 123,429.20/x
  3. Step 3: Cross multiply
    333,644.72x = 500,663.64 × 123,429.20
  4. Step 4: Simplify right side
    333,644.72x = 61,796,512,554.29
  5. Step 5: Solve for x
    x = 61,796,512,554.29/333,644.72
  6. Step 6: Final answer
    x = 185,216.52

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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.