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Finding the Fourth Proportional to 141,304.86, 194,866.80 and 92,821.50

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Solution

The fourth proportional to 141,304.86, 194,866.80 and 92,821.50 is: 128,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,304.86 : 194,866.80 = 92,821.50 : x
  2. Step 2: Convert to fraction form
    141,304.86/194,866.80 = 92,821.50/x
  3. Step 3: Cross multiply
    141,304.86x = 194,866.80 × 92,821.50
  4. Step 4: Simplify right side
    141,304.86x = 18,087,828,676.20
  5. Step 5: Solve for x
    x = 18,087,828,676.20/141,304.86
  6. Step 6: Final answer
    x = 128,005.71

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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.