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Finding the Fourth Proportional to 63,942.80, 96,029.40 and 46,432.40

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Solution

The fourth proportional to 63,942.80, 96,029.40 and 46,432.40 is: 69,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,942.80 : 96,029.40 = 46,432.40 : x
  2. Step 2: Convert to fraction form
    63,942.80/96,029.40 = 46,432.40/x
  3. Step 3: Cross multiply
    63,942.80x = 96,029.40 × 46,432.40
  4. Step 4: Simplify right side
    63,942.80x = 4,458,875,512.56
  5. Step 5: Solve for x
    x = 4,458,875,512.56/63,942.80
  6. Step 6: Final answer
    x = 69,732.25

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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.