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Finding the Fourth Proportional to 86,034.45, 118,731.52 and 47,794.05

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Solution

The fourth proportional to 86,034.45, 118,731.52 and 47,794.05 is: 65,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,034.45 : 118,731.52 = 47,794.05 : x
  2. Step 2: Convert to fraction form
    86,034.45/118,731.52 = 47,794.05/x
  3. Step 3: Cross multiply
    86,034.45x = 118,731.52 × 47,794.05
  4. Step 4: Simplify right side
    86,034.45x = 5,674,660,263.20
  5. Step 5: Solve for x
    x = 5,674,660,263.20/86,034.45
  6. Step 6: Final answer
    x = 65,958.00

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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.