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Finding the Fourth Proportional to 141,129.67, 194,920.59 and 92,947.00

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Solution

The fourth proportional to 141,129.67, 194,920.59 and 92,947.00 is: 128,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,129.67 : 194,920.59 = 92,947.00 : x
  2. Step 2: Convert to fraction form
    141,129.67/194,920.59 = 92,947.00/x
  3. Step 3: Cross multiply
    141,129.67x = 194,920.59 × 92,947.00
  4. Step 4: Simplify right side
    141,129.67x = 18,117,283,104.13
  5. Step 5: Solve for x
    x = 18,117,283,104.13/141,129.67
  6. Step 6: Final answer
    x = 128,373.32

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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.