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Finding the Fourth Proportional to 61,729.65, 85,188.66 and 34,873.29

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Solution

The fourth proportional to 61,729.65, 85,188.66 and 34,873.29 is: 48,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,729.65 : 85,188.66 = 34,873.29 : x
  2. Step 2: Convert to fraction form
    61,729.65/85,188.66 = 34,873.29/x
  3. Step 3: Cross multiply
    61,729.65x = 85,188.66 × 34,873.29
  4. Step 4: Simplify right side
    61,729.65x = 2,970,808,844.89
  5. Step 5: Solve for x
    x = 2,970,808,844.89/61,729.65
  6. Step 6: Final answer
    x = 48,126.12

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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.