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Finding the Fourth Proportional to 141,910.86, 212,861.66 and 57,646.09

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Solution

The fourth proportional to 141,910.86, 212,861.66 and 57,646.09 is: 86,467.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,910.86 : 212,861.66 = 57,646.09 : x
  2. Step 2: Convert to fraction form
    141,910.86/212,861.66 = 57,646.09/x
  3. Step 3: Cross multiply
    141,910.86x = 212,861.66 × 57,646.09
  4. Step 4: Simplify right side
    141,910.86x = 12,270,642,930.29
  5. Step 5: Solve for x
    x = 12,270,642,930.29/141,910.86
  6. Step 6: Final answer
    x = 86,467.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.