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Finding the Fourth Proportional to 133,092.62, 183,670.41 and 72,663.42

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Solution

The fourth proportional to 133,092.62, 183,670.41 and 72,663.42 is: 100,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,092.62 : 183,670.41 = 72,663.42 : x
  2. Step 2: Convert to fraction form
    133,092.62/183,670.41 = 72,663.42/x
  3. Step 3: Cross multiply
    133,092.62x = 183,670.41 × 72,663.42
  4. Step 4: Simplify right side
    133,092.62x = 13,346,119,608.86
  5. Step 5: Solve for x
    x = 13,346,119,608.86/133,092.62
  6. Step 6: Final answer
    x = 100,276.93

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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.