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Finding the Fourth Proportional to 61,198.66, 84,453.36 and 34,341.70

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Solution

The fourth proportional to 61,198.66, 84,453.36 and 34,341.70 is: 47,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,198.66 : 84,453.36 = 34,341.70 : x
  2. Step 2: Convert to fraction form
    61,198.66/84,453.36 = 34,341.70/x
  3. Step 3: Cross multiply
    61,198.66x = 84,453.36 × 34,341.70
  4. Step 4: Simplify right side
    61,198.66x = 2,900,271,953.11
  5. Step 5: Solve for x
    x = 2,900,271,953.11/61,198.66
  6. Step 6: Final answer
    x = 47,391.10

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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.