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Finding the Fourth Proportional to 352,672.60, 528,231.30 and 186,266.20

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Solution

The fourth proportional to 352,672.60, 528,231.30 and 186,266.20 is: 278,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,672.60 : 528,231.30 = 186,266.20 : x
  2. Step 2: Convert to fraction form
    352,672.60/528,231.30 = 186,266.20/x
  3. Step 3: Cross multiply
    352,672.60x = 528,231.30 × 186,266.20
  4. Step 4: Simplify right side
    352,672.60x = 98,391,636,972.06
  5. Step 5: Solve for x
    x = 98,391,636,972.06/352,672.60
  6. Step 6: Final answer
    x = 278,988.61

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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.