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Finding the Fourth Proportional to 163,732.80, 245,728.80 and 63,940.80

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Solution

The fourth proportional to 163,732.80, 245,728.80 and 63,940.80 is: 95,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,732.80 : 245,728.80 = 63,940.80 : x
  2. Step 2: Convert to fraction form
    163,732.80/245,728.80 = 63,940.80/x
  3. Step 3: Cross multiply
    163,732.80x = 245,728.80 × 63,940.80
  4. Step 4: Simplify right side
    163,732.80x = 15,712,096,055.04
  5. Step 5: Solve for x
    x = 15,712,096,055.04/163,732.80
  6. Step 6: Final answer
    x = 95,961.81

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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.