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Finding the Fourth Proportional to 133,041.30, 199,270.35 and 118,266.90

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Solution

The fourth proportional to 133,041.30, 199,270.35 and 118,266.90 is: 177,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,041.30 : 199,270.35 = 118,266.90 : x
  2. Step 2: Convert to fraction form
    133,041.30/199,270.35 = 118,266.90/x
  3. Step 3: Cross multiply
    133,041.30x = 199,270.35 × 118,266.90
  4. Step 4: Simplify right side
    133,041.30x = 23,567,086,556.42
  5. Step 5: Solve for x
    x = 23,567,086,556.42/133,041.30
  6. Step 6: Final answer
    x = 177,141.13

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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.