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Finding the Fourth Proportional to 135,974.35, 203,891.49 and 61,030.25

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Solution

The fourth proportional to 135,974.35, 203,891.49 and 61,030.25 is: 91,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,974.35 : 203,891.49 = 61,030.25 : x
  2. Step 2: Convert to fraction form
    135,974.35/203,891.49 = 61,030.25/x
  3. Step 3: Cross multiply
    135,974.35x = 203,891.49 × 61,030.25
  4. Step 4: Simplify right side
    135,974.35x = 12,443,547,588.12
  5. Step 5: Solve for x
    x = 12,443,547,588.12/135,974.35
  6. Step 6: Final answer
    x = 91,513.93

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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.