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Finding the Fourth Proportional to 123,796.41, 170,843.13 and 70,080.30

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Solution

The fourth proportional to 123,796.41, 170,843.13 and 70,080.30 is: 96,713.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,796.41 : 170,843.13 = 70,080.30 : x
  2. Step 2: Convert to fraction form
    123,796.41/170,843.13 = 70,080.30/x
  3. Step 3: Cross multiply
    123,796.41x = 170,843.13 × 70,080.30
  4. Step 4: Simplify right side
    123,796.41x = 11,972,737,803.34
  5. Step 5: Solve for x
    x = 11,972,737,803.34/123,796.41
  6. Step 6: Final answer
    x = 96,713.13

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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.