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Finding the Fourth Proportional to 141,646.62, 195,486.17 and 105,774.42

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Solution

The fourth proportional to 141,646.62, 195,486.17 and 105,774.42 is: 145,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,646.62 : 195,486.17 = 105,774.42 : x
  2. Step 2: Convert to fraction form
    141,646.62/195,486.17 = 105,774.42/x
  3. Step 3: Cross multiply
    141,646.62x = 195,486.17 × 105,774.42
  4. Step 4: Simplify right side
    141,646.62x = 20,677,436,249.77
  5. Step 5: Solve for x
    x = 20,677,436,249.77/141,646.62
  6. Step 6: Final answer
    x = 145,979.03

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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.