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Finding the Fourth Proportional to 84,812.52, 117,041.04 and 47,086.50

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Solution

The fourth proportional to 84,812.52, 117,041.04 and 47,086.50 is: 64,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,812.52 : 117,041.04 = 47,086.50 : x
  2. Step 2: Convert to fraction form
    84,812.52/117,041.04 = 47,086.50/x
  3. Step 3: Cross multiply
    84,812.52x = 117,041.04 × 47,086.50
  4. Step 4: Simplify right side
    84,812.52x = 5,511,052,929.96
  5. Step 5: Solve for x
    x = 5,511,052,929.96/84,812.52
  6. Step 6: Final answer
    x = 64,979.24

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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.