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Finding the Fourth Proportional to 65,308.80, 89,997.12 and 46,392.96

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Solution

The fourth proportional to 65,308.80, 89,997.12 and 46,392.96 is: 63,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,308.80 : 89,997.12 = 46,392.96 : x
  2. Step 2: Convert to fraction form
    65,308.80/89,997.12 = 46,392.96/x
  3. Step 3: Cross multiply
    65,308.80x = 89,997.12 × 46,392.96
  4. Step 4: Simplify right side
    65,308.80x = 4,175,232,788.28
  5. Step 5: Solve for x
    x = 4,175,232,788.28/65,308.80
  6. Step 6: Final answer
    x = 63,930.63

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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.