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Finding the Fourth Proportional to 273,138.02, 409,702.16 and 104,612.66

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Solution

The fourth proportional to 273,138.02, 409,702.16 and 104,612.66 is: 156,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,138.02 : 409,702.16 = 104,612.66 : x
  2. Step 2: Convert to fraction form
    273,138.02/409,702.16 = 104,612.66/x
  3. Step 3: Cross multiply
    273,138.02x = 409,702.16 × 104,612.66
  4. Step 4: Simplify right side
    273,138.02x = 42,860,030,978.37
  5. Step 5: Solve for x
    x = 42,860,030,978.37/273,138.02
  6. Step 6: Final answer
    x = 156,917.12

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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.