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Finding the Fourth Proportional to 141,165.86, 211,561.88 and 103,549.84

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Solution

The fourth proportional to 141,165.86, 211,561.88 and 103,549.84 is: 155,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,165.86 : 211,561.88 = 103,549.84 : x
  2. Step 2: Convert to fraction form
    141,165.86/211,561.88 = 103,549.84/x
  3. Step 3: Cross multiply
    141,165.86x = 211,561.88 × 103,549.84
  4. Step 4: Simplify right side
    141,165.86x = 21,907,198,554.07
  5. Step 5: Solve for x
    x = 21,907,198,554.07/141,165.86
  6. Step 6: Final answer
    x = 155,187.65

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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.