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Finding the Fourth Proportional to 118,322.96, 177,396.84 and 55,920.56

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Solution

The fourth proportional to 118,322.96, 177,396.84 and 55,920.56 is: 83,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,322.96 : 177,396.84 = 55,920.56 : x
  2. Step 2: Convert to fraction form
    118,322.96/177,396.84 = 55,920.56/x
  3. Step 3: Cross multiply
    118,322.96x = 177,396.84 × 55,920.56
  4. Step 4: Simplify right side
    118,322.96x = 9,920,130,635.03
  5. Step 5: Solve for x
    x = 9,920,130,635.03/118,322.96
  6. Step 6: Final answer
    x = 83,839.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.