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Finding the Fourth Proportional to 164,961.20, 247,441.80 and 125,595.20

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Solution

The fourth proportional to 164,961.20, 247,441.80 and 125,595.20 is: 188,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,961.20 : 247,441.80 = 125,595.20 : x
  2. Step 2: Convert to fraction form
    164,961.20/247,441.80 = 125,595.20/x
  3. Step 3: Cross multiply
    164,961.20x = 247,441.80 × 125,595.20
  4. Step 4: Simplify right side
    164,961.20x = 31,077,502,359.36
  5. Step 5: Solve for x
    x = 31,077,502,359.36/164,961.20
  6. Step 6: Final answer
    x = 188,392.80

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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.