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Finding the Fourth Proportional to 291,702.40, 437,553.60 and 171,636.10

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Solution

The fourth proportional to 291,702.40, 437,553.60 and 171,636.10 is: 257,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,702.40 : 437,553.60 = 171,636.10 : x
  2. Step 2: Convert to fraction form
    291,702.40/437,553.60 = 171,636.10/x
  3. Step 3: Cross multiply
    291,702.40x = 437,553.60 × 171,636.10
  4. Step 4: Simplify right side
    291,702.40x = 75,099,993,444.96
  5. Step 5: Solve for x
    x = 75,099,993,444.96/291,702.40
  6. Step 6: Final answer
    x = 257,454.15

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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.