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Finding the Fourth Proportional to 352,685.70, 529,048.56 and 112,820.68

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Solution

The fourth proportional to 352,685.70, 529,048.56 and 112,820.68 is: 169,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,685.70 : 529,048.56 = 112,820.68 : x
  2. Step 2: Convert to fraction form
    352,685.70/529,048.56 = 112,820.68/x
  3. Step 3: Cross multiply
    352,685.70x = 529,048.56 × 112,820.68
  4. Step 4: Simplify right side
    352,685.70x = 59,687,618,292.22
  5. Step 5: Solve for x
    x = 59,687,618,292.22/352,685.70
  6. Step 6: Final answer
    x = 169,237.42

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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.