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Finding the Fourth Proportional to 99,773.64, 137,373.30 and 84,634.92

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Solution

The fourth proportional to 99,773.64, 137,373.30 and 84,634.92 is: 116,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,773.64 : 137,373.30 = 84,634.92 : x
  2. Step 2: Convert to fraction form
    99,773.64/137,373.30 = 84,634.92/x
  3. Step 3: Cross multiply
    99,773.64x = 137,373.30 × 84,634.92
  4. Step 4: Simplify right side
    99,773.64x = 11,626,578,255.64
  5. Step 5: Solve for x
    x = 11,626,578,255.64/99,773.64
  6. Step 6: Final answer
    x = 116,529.56

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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.