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Finding the Fourth Proportional to 163,312.94, 244,739.66 and 129,884.64

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Solution

The fourth proportional to 163,312.94, 244,739.66 and 129,884.64 is: 194,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,312.94 : 244,739.66 = 129,884.64 : x
  2. Step 2: Convert to fraction form
    163,312.94/244,739.66 = 129,884.64/x
  3. Step 3: Cross multiply
    163,312.94x = 244,739.66 × 129,884.64
  4. Step 4: Simplify right side
    163,312.94x = 31,787,922,632.82
  5. Step 5: Solve for x
    x = 31,787,922,632.82/163,312.94
  6. Step 6: Final answer
    x = 194,644.24

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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.