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Finding the Fourth Proportional to 235,781.91, 325,412.64 and 133,832.61

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Solution

The fourth proportional to 235,781.91, 325,412.64 and 133,832.61 is: 184,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,781.91 : 325,412.64 = 133,832.61 : x
  2. Step 2: Convert to fraction form
    235,781.91/325,412.64 = 133,832.61/x
  3. Step 3: Cross multiply
    235,781.91x = 325,412.64 × 133,832.61
  4. Step 4: Simplify right side
    235,781.91x = 43,550,822,938.19
  5. Step 5: Solve for x
    x = 43,550,822,938.19/235,781.91
  6. Step 6: Final answer
    x = 184,708.08

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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.