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Finding the Fourth Proportional to 236,533.54, 354,856.80 and 78,763.36

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Solution

The fourth proportional to 236,533.54, 354,856.80 and 78,763.36 is: 118,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,533.54 : 354,856.80 = 78,763.36 : x
  2. Step 2: Convert to fraction form
    236,533.54/354,856.80 = 78,763.36/x
  3. Step 3: Cross multiply
    236,533.54x = 354,856.80 × 78,763.36
  4. Step 4: Simplify right side
    236,533.54x = 27,949,713,886.85
  5. Step 5: Solve for x
    x = 27,949,713,886.85/236,533.54
  6. Step 6: Final answer
    x = 118,163.85

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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.