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Finding the Fourth Proportional to 661,595.72, 992,524.70 and 188,299.72

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Solution

The fourth proportional to 661,595.72, 992,524.70 and 188,299.72 is: 282,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,595.72 : 992,524.70 = 188,299.72 : x
  2. Step 2: Convert to fraction form
    661,595.72/992,524.70 = 188,299.72/x
  3. Step 3: Cross multiply
    661,595.72x = 992,524.70 × 188,299.72
  4. Step 4: Simplify right side
    661,595.72x = 186,892,123,103.08
  5. Step 5: Solve for x
    x = 186,892,123,103.08/661,595.72
  6. Step 6: Final answer
    x = 282,486.90

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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.