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Finding the Fourth Proportional to 121,655.69, 167,860.50 and 67,932.44

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Solution

The fourth proportional to 121,655.69, 167,860.50 and 67,932.44 is: 93,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,655.69 : 167,860.50 = 67,932.44 : x
  2. Step 2: Convert to fraction form
    121,655.69/167,860.50 = 67,932.44/x
  3. Step 3: Cross multiply
    121,655.69x = 167,860.50 × 67,932.44
  4. Step 4: Simplify right side
    121,655.69x = 11,403,172,505.32
  5. Step 5: Solve for x
    x = 11,403,172,505.32/121,655.69
  6. Step 6: Final answer
    x = 93,733.17

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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.