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Finding the Fourth Proportional to 104,911.20, 157,366.80 and 95,725.80

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Solution

The fourth proportional to 104,911.20, 157,366.80 and 95,725.80 is: 143,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,911.20 : 157,366.80 = 95,725.80 : x
  2. Step 2: Convert to fraction form
    104,911.20/157,366.80 = 95,725.80/x
  3. Step 3: Cross multiply
    104,911.20x = 157,366.80 × 95,725.80
  4. Step 4: Simplify right side
    104,911.20x = 15,064,062,823.44
  5. Step 5: Solve for x
    x = 15,064,062,823.44/104,911.20
  6. Step 6: Final answer
    x = 143,588.70

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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.