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Finding the Fourth Proportional to 104,505.75, 144,244.78 and 63,697.55

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Solution

The fourth proportional to 104,505.75, 144,244.78 and 63,697.55 is: 87,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,505.75 : 144,244.78 = 63,697.55 : x
  2. Step 2: Convert to fraction form
    104,505.75/144,244.78 = 63,697.55/x
  3. Step 3: Cross multiply
    104,505.75x = 144,244.78 × 63,697.55
  4. Step 4: Simplify right side
    104,505.75x = 9,188,038,205.82
  5. Step 5: Solve for x
    x = 9,188,038,205.82/104,505.75
  6. Step 6: Final answer
    x = 87,918.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.