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Finding the Fourth Proportional to 61,730.86, 85,185.84 and 34,873.26

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Solution

The fourth proportional to 61,730.86, 85,185.84 and 34,873.26 is: 48,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,730.86 : 85,185.84 = 34,873.26 : x
  2. Step 2: Convert to fraction form
    61,730.86/85,185.84 = 34,873.26/x
  3. Step 3: Cross multiply
    61,730.86x = 85,185.84 × 34,873.26
  4. Step 4: Simplify right side
    61,730.86x = 2,970,707,946.64
  5. Step 5: Solve for x
    x = 2,970,707,946.64/61,730.86
  6. Step 6: Final answer
    x = 48,123.55

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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.