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Finding the Fourth Proportional to 189,373.88, 283,845 and 118,329.32

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Solution

The fourth proportional to 189,373.88, 283,845 and 118,329.32 is: 177,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,373.88 : 283,845 = 118,329.32 : x
  2. Step 2: Convert to fraction form
    189,373.88/283,845 = 118,329.32/x
  3. Step 3: Cross multiply
    189,373.88x = 283,845 × 118,329.32
  4. Step 4: Simplify right side
    189,373.88x = 33,587,185,835.40
  5. Step 5: Solve for x
    x = 33,587,185,835.40/189,373.88
  6. Step 6: Final answer
    x = 177,359.13

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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.