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Finding the Fourth Proportional to 133,092.87, 183,667.22 and 72,663.51

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Solution

The fourth proportional to 133,092.87, 183,667.22 and 72,663.51 is: 100,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,092.87 : 183,667.22 = 72,663.51 : x
  2. Step 2: Convert to fraction form
    133,092.87/183,667.22 = 72,663.51/x
  3. Step 3: Cross multiply
    133,092.87x = 183,667.22 × 72,663.51
  4. Step 4: Simplify right side
    133,092.87x = 13,345,904,877.14
  5. Step 5: Solve for x
    x = 13,345,904,877.14/133,092.87
  6. Step 6: Final answer
    x = 100,275.13

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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.