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Finding the Fourth Proportional to 104,761.65, 144,486.28 and 64,403.30

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Solution

The fourth proportional to 104,761.65, 144,486.28 and 64,403.30 is: 88,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,761.65 : 144,486.28 = 64,403.30 : x
  2. Step 2: Convert to fraction form
    104,761.65/144,486.28 = 64,403.30/x
  3. Step 3: Cross multiply
    104,761.65x = 144,486.28 × 64,403.30
  4. Step 4: Simplify right side
    104,761.65x = 9,305,393,678.44
  5. Step 5: Solve for x
    x = 9,305,393,678.44/104,761.65
  6. Step 6: Final answer
    x = 88,824.43

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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.