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Finding the Fourth Proportional to 586,144.21, 879,093.30 and 165,321.67

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Solution

The fourth proportional to 586,144.21, 879,093.30 and 165,321.67 is: 247,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,144.21 : 879,093.30 = 165,321.67 : x
  2. Step 2: Convert to fraction form
    586,144.21/879,093.30 = 165,321.67/x
  3. Step 3: Cross multiply
    586,144.21x = 879,093.30 × 165,321.67
  4. Step 4: Simplify right side
    586,144.21x = 145,333,172,702.38
  5. Step 5: Solve for x
    x = 145,333,172,702.38/586,144.21
  6. Step 6: Final answer
    x = 247,947.81

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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.