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Finding the Fourth Proportional to 183,479.72, 275,051.30 and 71,131.10

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Solution

The fourth proportional to 183,479.72, 275,051.30 and 71,131.10 is: 106,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,479.72 : 275,051.30 = 71,131.10 : x
  2. Step 2: Convert to fraction form
    183,479.72/275,051.30 = 71,131.10/x
  3. Step 3: Cross multiply
    183,479.72x = 275,051.30 × 71,131.10
  4. Step 4: Simplify right side
    183,479.72x = 19,564,699,794.52
  5. Step 5: Solve for x
    x = 19,564,699,794.52/183,479.72
  6. Step 6: Final answer
    x = 106,631.40

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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.