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Finding the Fourth Proportional to 61,729.71, 85,193.90 and 34,873.94

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Solution

The fourth proportional to 61,729.71, 85,193.90 and 34,873.94 is: 48,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,729.71 : 85,193.90 = 34,873.94 : x
  2. Step 2: Convert to fraction form
    61,729.71/85,193.90 = 34,873.94/x
  3. Step 3: Cross multiply
    61,729.71x = 85,193.90 × 34,873.94
  4. Step 4: Simplify right side
    61,729.71x = 2,971,046,956.97
  5. Step 5: Solve for x
    x = 2,971,046,956.97/61,729.71
  6. Step 6: Final answer
    x = 48,129.94

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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.