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Finding the Fourth Proportional to 61,730.71, 85,195.28 and 34,874.94

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Solution

The fourth proportional to 61,730.71, 85,195.28 and 34,874.94 is: 48,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,730.71 : 85,195.28 = 34,874.94 : x
  2. Step 2: Convert to fraction form
    61,730.71/85,195.28 = 34,874.94/x
  3. Step 3: Cross multiply
    61,730.71x = 85,195.28 × 34,874.94
  4. Step 4: Simplify right side
    61,730.71x = 2,971,180,278.28
  5. Step 5: Solve for x
    x = 2,971,180,278.28/61,730.71
  6. Step 6: Final answer
    x = 48,131.32

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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.