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Finding the Fourth Proportional to 192,346.20, 288,552.48 and 85,768.02

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Solution

The fourth proportional to 192,346.20, 288,552.48 and 85,768.02 is: 128,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,346.20 : 288,552.48 = 85,768.02 : x
  2. Step 2: Convert to fraction form
    192,346.20/288,552.48 = 85,768.02/x
  3. Step 3: Cross multiply
    192,346.20x = 288,552.48 × 85,768.02
  4. Step 4: Simplify right side
    192,346.20x = 24,748,574,875.69
  5. Step 5: Solve for x
    x = 24,748,574,875.69/192,346.20
  6. Step 6: Final answer
    x = 128,666.83

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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.