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Finding the Fourth Proportional to 163,961.52, 245,917.72 and 45,620.72

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Solution

The fourth proportional to 163,961.52, 245,917.72 and 45,620.72 is: 68,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,961.52 : 245,917.72 = 45,620.72 : x
  2. Step 2: Convert to fraction form
    163,961.52/245,917.72 = 45,620.72/x
  3. Step 3: Cross multiply
    163,961.52x = 245,917.72 × 45,620.72
  4. Step 4: Simplify right side
    163,961.52x = 11,218,943,447.16
  5. Step 5: Solve for x
    x = 11,218,943,447.16/163,961.52
  6. Step 6: Final answer
    x = 68,424.25

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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.