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Finding the Fourth Proportional to 259,990.85, 358,789.74 and 152,562.67

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Solution

The fourth proportional to 259,990.85, 358,789.74 and 152,562.67 is: 210,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,990.85 : 358,789.74 = 152,562.67 : x
  2. Step 2: Convert to fraction form
    259,990.85/358,789.74 = 152,562.67/x
  3. Step 3: Cross multiply
    259,990.85x = 358,789.74 × 152,562.67
  4. Step 4: Simplify right side
    259,990.85x = 54,737,920,703.01
  5. Step 5: Solve for x
    x = 54,737,920,703.01/259,990.85
  6. Step 6: Final answer
    x = 210,537.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.