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Finding the Fourth Proportional to 68,763.70, 103,079.62 and 43,726.24

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Solution

The fourth proportional to 68,763.70, 103,079.62 and 43,726.24 is: 65,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,763.70 : 103,079.62 = 43,726.24 : x
  2. Step 2: Convert to fraction form
    68,763.70/103,079.62 = 43,726.24/x
  3. Step 3: Cross multiply
    68,763.70x = 103,079.62 × 43,726.24
  4. Step 4: Simplify right side
    68,763.70x = 4,507,284,203.23
  5. Step 5: Solve for x
    x = 4,507,284,203.23/68,763.70
  6. Step 6: Final answer
    x = 65,547.44

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1.5x scale

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.