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Finding the Fourth Proportional to 141,190.71, 195,016.88 and 105,539.88

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Solution

The fourth proportional to 141,190.71, 195,016.88 and 105,539.88 is: 145,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,190.71 : 195,016.88 = 105,539.88 : x
  2. Step 2: Convert to fraction form
    141,190.71/195,016.88 = 105,539.88/x
  3. Step 3: Cross multiply
    141,190.71x = 195,016.88 × 105,539.88
  4. Step 4: Simplify right side
    141,190.71x = 20,582,057,585.48
  5. Step 5: Solve for x
    x = 20,582,057,585.48/141,190.71
  6. Step 6: Final answer
    x = 145,774.87

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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.