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Finding the Fourth Proportional to 95,456, 143,156.46 and 28,880.48

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Solution

The fourth proportional to 95,456, 143,156.46 and 28,880.48 is: 43,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,456 : 143,156.46 = 28,880.48 : x
  2. Step 2: Convert to fraction form
    95,456/143,156.46 = 28,880.48/x
  3. Step 3: Cross multiply
    95,456x = 143,156.46 × 28,880.48
  4. Step 4: Simplify right side
    95,456x = 4,134,427,279.90
  5. Step 5: Solve for x
    x = 4,134,427,279.90/95,456
  6. Step 6: Final answer
    x = 43,312.39

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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.