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Finding the Fourth Proportional to 123,796.17, 170,840.09 and 70,080.01

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Solution

The fourth proportional to 123,796.17, 170,840.09 and 70,080.01 is: 96,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,796.17 : 170,840.09 = 70,080.01 : x
  2. Step 2: Convert to fraction form
    123,796.17/170,840.09 = 70,080.01/x
  3. Step 3: Cross multiply
    123,796.17x = 170,840.09 × 70,080.01
  4. Step 4: Simplify right side
    123,796.17x = 11,972,474,963.70
  5. Step 5: Solve for x
    x = 11,972,474,963.70/123,796.17
  6. Step 6: Final answer
    x = 96,711.19

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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.