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Finding the Fourth Proportional to 67,699.64, 93,468.12 and 43,511.42

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Solution

The fourth proportional to 67,699.64, 93,468.12 and 43,511.42 is: 60,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,699.64 : 93,468.12 = 43,511.42 : x
  2. Step 2: Convert to fraction form
    67,699.64/93,468.12 = 43,511.42/x
  3. Step 3: Cross multiply
    67,699.64x = 93,468.12 × 43,511.42
  4. Step 4: Simplify right side
    67,699.64x = 4,066,930,625.93
  5. Step 5: Solve for x
    x = 4,066,930,625.93/67,699.64
  6. Step 6: Final answer
    x = 60,073.15

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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.