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Finding the Fourth Proportional to 503,272.28, 754,814.63 and 161,721.63

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Solution

The fourth proportional to 503,272.28, 754,814.63 and 161,721.63 is: 242,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,272.28 : 754,814.63 = 161,721.63 : x
  2. Step 2: Convert to fraction form
    503,272.28/754,814.63 = 161,721.63/x
  3. Step 3: Cross multiply
    503,272.28x = 754,814.63 × 161,721.63
  4. Step 4: Simplify right side
    503,272.28x = 122,069,848,537.37
  5. Step 5: Solve for x
    x = 122,069,848,537.37/503,272.28
  6. Step 6: Final answer
    x = 242,552.30

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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.