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Finding the Fourth Proportional to 101,616.12, 140,199.66 and 65,848.14

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Solution

The fourth proportional to 101,616.12, 140,199.66 and 65,848.14 is: 90,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,616.12 : 140,199.66 = 65,848.14 : x
  2. Step 2: Convert to fraction form
    101,616.12/140,199.66 = 65,848.14/x
  3. Step 3: Cross multiply
    101,616.12x = 140,199.66 × 65,848.14
  4. Step 4: Simplify right side
    101,616.12x = 9,231,886,839.63
  5. Step 5: Solve for x
    x = 9,231,886,839.63/101,616.12
  6. Step 6: Final answer
    x = 90,850.61

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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.