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Finding the Fourth Proportional to 236,362.61, 354,546.99 and 78,591.06

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Solution

The fourth proportional to 236,362.61, 354,546.99 and 78,591.06 is: 117,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,362.61 : 354,546.99 = 78,591.06 : x
  2. Step 2: Convert to fraction form
    236,362.61/354,546.99 = 78,591.06/x
  3. Step 3: Cross multiply
    236,362.61x = 354,546.99 × 78,591.06
  4. Step 4: Simplify right side
    236,362.61x = 27,864,223,074.02
  5. Step 5: Solve for x
    x = 27,864,223,074.02/236,362.61
  6. Step 6: Final answer
    x = 117,887.61

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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.