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Finding the Fourth Proportional to 352,793.48, 529,159.01 and 128,155.85

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Solution

The fourth proportional to 352,793.48, 529,159.01 and 128,155.85 is: 192,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,793.48 : 529,159.01 = 128,155.85 : x
  2. Step 2: Convert to fraction form
    352,793.48/529,159.01 = 128,155.85/x
  3. Step 3: Cross multiply
    352,793.48x = 529,159.01 × 128,155.85
  4. Step 4: Simplify right side
    352,793.48x = 67,814,819,425.13
  5. Step 5: Solve for x
    x = 67,814,819,425.13/352,793.48
  6. Step 6: Final answer
    x = 192,222.43

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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.