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Finding the Fourth Proportional to 501,333.68, 751,990.80 and 122,255.84

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Solution

The fourth proportional to 501,333.68, 751,990.80 and 122,255.84 is: 183,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,333.68 : 751,990.80 = 122,255.84 : x
  2. Step 2: Convert to fraction form
    501,333.68/751,990.80 = 122,255.84/x
  3. Step 3: Cross multiply
    501,333.68x = 751,990.80 × 122,255.84
  4. Step 4: Simplify right side
    501,333.68x = 91,935,266,926.27
  5. Step 5: Solve for x
    x = 91,935,266,926.27/501,333.68
  6. Step 6: Final answer
    x = 183,381.39

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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.