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Finding the Fourth Proportional to 101,758.17, 140,304.24 and 65,935.11

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Solution

The fourth proportional to 101,758.17, 140,304.24 and 65,935.11 is: 90,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,758.17 : 140,304.24 = 65,935.11 : x
  2. Step 2: Convert to fraction form
    101,758.17/140,304.24 = 65,935.11/x
  3. Step 3: Cross multiply
    101,758.17x = 140,304.24 × 65,935.11
  4. Step 4: Simplify right side
    101,758.17x = 9,250,975,497.87
  5. Step 5: Solve for x
    x = 9,250,975,497.87/101,758.17
  6. Step 6: Final answer
    x = 90,911.38

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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.