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Finding the Fourth Proportional to 133,092.38, 183,666.53 and 72,663.01

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Solution

The fourth proportional to 133,092.38, 183,666.53 and 72,663.01 is: 100,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,092.38 : 183,666.53 = 72,663.01 : x
  2. Step 2: Convert to fraction form
    133,092.38/183,666.53 = 72,663.01/x
  3. Step 3: Cross multiply
    133,092.38x = 183,666.53 × 72,663.01
  4. Step 4: Simplify right side
    133,092.38x = 13,345,762,906.06
  5. Step 5: Solve for x
    x = 13,345,762,906.06/133,092.38
  6. Step 6: Final answer
    x = 100,274.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.