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Finding the Fourth Proportional to 67,399.86, 93,011.22 and 37,185.45

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Solution

The fourth proportional to 67,399.86, 93,011.22 and 37,185.45 is: 51,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,399.86 : 93,011.22 = 37,185.45 : x
  2. Step 2: Convert to fraction form
    67,399.86/93,011.22 = 37,185.45/x
  3. Step 3: Cross multiply
    67,399.86x = 93,011.22 × 37,185.45
  4. Step 4: Simplify right side
    67,399.86x = 3,458,664,070.75
  5. Step 5: Solve for x
    x = 3,458,664,070.75/67,399.86
  6. Step 6: Final answer
    x = 51,315.60

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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.