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Finding the Fourth Proportional to 117,661.63, 162,374.31 and 63,946.65

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Solution

The fourth proportional to 117,661.63, 162,374.31 and 63,946.65 is: 88,247.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,661.63 : 162,374.31 = 63,946.65 : x
  2. Step 2: Convert to fraction form
    117,661.63/162,374.31 = 63,946.65/x
  3. Step 3: Cross multiply
    117,661.63x = 162,374.31 × 63,946.65
  4. Step 4: Simplify right side
    117,661.63x = 10,383,292,444.89
  5. Step 5: Solve for x
    x = 10,383,292,444.89/117,661.63
  6. Step 6: Final answer
    x = 88,247.06

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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.