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Finding the Fourth Proportional to 133,662.36, 200,530.50 and 118,973.88

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Solution

The fourth proportional to 133,662.36, 200,530.50 and 118,973.88 is: 178,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,662.36 : 200,530.50 = 118,973.88 : x
  2. Step 2: Convert to fraction form
    133,662.36/200,530.50 = 118,973.88/x
  3. Step 3: Cross multiply
    133,662.36x = 200,530.50 × 118,973.88
  4. Step 4: Simplify right side
    133,662.36x = 23,857,891,643.34
  5. Step 5: Solve for x
    x = 23,857,891,643.34/133,662.36
  6. Step 6: Final answer
    x = 178,493.72

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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.