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Finding the Fourth Proportional to 85,054.68, 117,370.89 and 47,326.50

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Solution

The fourth proportional to 85,054.68, 117,370.89 and 47,326.50 is: 65,308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,054.68 : 117,370.89 = 47,326.50 : x
  2. Step 2: Convert to fraction form
    85,054.68/117,370.89 = 47,326.50/x
  3. Step 3: Cross multiply
    85,054.68x = 117,370.89 × 47,326.50
  4. Step 4: Simplify right side
    85,054.68x = 5,554,753,425.59
  5. Step 5: Solve for x
    x = 5,554,753,425.59/85,054.68
  6. Step 6: Final answer
    x = 65,308.03

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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.