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Finding the Fourth Proportional to 85,319.04, 117,739.92 and 47,593.32

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Solution

The fourth proportional to 85,319.04, 117,739.92 and 47,593.32 is: 65,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,319.04 : 117,739.92 = 47,593.32 : x
  2. Step 2: Convert to fraction form
    85,319.04/117,739.92 = 47,593.32/x
  3. Step 3: Cross multiply
    85,319.04x = 117,739.92 × 47,593.32
  4. Step 4: Simplify right side
    85,319.04x = 5,603,633,689.33
  5. Step 5: Solve for x
    x = 5,603,633,689.33/85,319.04
  6. Step 6: Final answer
    x = 65,678.58

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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.