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Finding the Fourth Proportional to 85,303.92, 117,724.68 and 47,063.28

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Solution

The fourth proportional to 85,303.92, 117,724.68 and 47,063.28 is: 64,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.92 : 117,724.68 = 47,063.28 : x
  2. Step 2: Convert to fraction form
    85,303.92/117,724.68 = 47,063.28/x
  3. Step 3: Cross multiply
    85,303.92x = 117,724.68 × 47,063.28
  4. Step 4: Simplify right side
    85,303.92x = 5,540,509,577.75
  5. Step 5: Solve for x
    x = 5,540,509,577.75/85,303.92
  6. Step 6: Final answer
    x = 64,950.23

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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.