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Finding the Fourth Proportional to 101,603.16, 140,182.02 and 65,736.36

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Solution

The fourth proportional to 101,603.16, 140,182.02 and 65,736.36 is: 90,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,603.16 : 140,182.02 = 65,736.36 : x
  2. Step 2: Convert to fraction form
    101,603.16/140,182.02 = 65,736.36/x
  3. Step 3: Cross multiply
    101,603.16x = 140,182.02 × 65,736.36
  4. Step 4: Simplify right side
    101,603.16x = 9,215,055,732.25
  5. Step 5: Solve for x
    x = 9,215,055,732.25/101,603.16
  6. Step 6: Final answer
    x = 90,696.55

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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.