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Finding the Fourth Proportional to 92,983.68, 128,313.34 and 52,695.08

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Solution

The fourth proportional to 92,983.68, 128,313.34 and 52,695.08 is: 72,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,983.68 : 128,313.34 = 52,695.08 : x
  2. Step 2: Convert to fraction form
    92,983.68/128,313.34 = 52,695.08/x
  3. Step 3: Cross multiply
    92,983.68x = 128,313.34 × 52,695.08
  4. Step 4: Simplify right side
    92,983.68x = 6,761,481,716.37
  5. Step 5: Solve for x
    x = 6,761,481,716.37/92,983.68
  6. Step 6: Final answer
    x = 72,716.87

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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.