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Finding the Fourth Proportional to 161,668.88, 242,551.32 and 82,838.48

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Solution

The fourth proportional to 161,668.88, 242,551.32 and 82,838.48 is: 124,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,668.88 : 242,551.32 = 82,838.48 : x
  2. Step 2: Convert to fraction form
    161,668.88/242,551.32 = 82,838.48/x
  3. Step 3: Cross multiply
    161,668.88x = 242,551.32 × 82,838.48
  4. Step 4: Simplify right side
    161,668.88x = 20,092,582,670.79
  5. Step 5: Solve for x
    x = 20,092,582,670.79/161,668.88
  6. Step 6: Final answer
    x = 124,282.32

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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.