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Finding the Fourth Proportional to 104,079.33, 143,632.09 and 63,815.29

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Solution

The fourth proportional to 104,079.33, 143,632.09 and 63,815.29 is: 88,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,079.33 : 143,632.09 = 63,815.29 : x
  2. Step 2: Convert to fraction form
    104,079.33/143,632.09 = 63,815.29/x
  3. Step 3: Cross multiply
    104,079.33x = 143,632.09 × 63,815.29
  4. Step 4: Simplify right side
    104,079.33x = 9,165,923,476.66
  5. Step 5: Solve for x
    x = 9,165,923,476.66/104,079.33
  6. Step 6: Final answer
    x = 88,066.70

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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.