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Finding the Fourth Proportional to 61,722.66, 85,178.91 and 37,835.58

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Solution

The fourth proportional to 61,722.66, 85,178.91 and 37,835.58 is: 52,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,722.66 : 85,178.91 = 37,835.58 : x
  2. Step 2: Convert to fraction form
    61,722.66/85,178.91 = 37,835.58/x
  3. Step 3: Cross multiply
    61,722.66x = 85,178.91 × 37,835.58
  4. Step 4: Simplify right side
    61,722.66x = 3,222,793,463.62
  5. Step 5: Solve for x
    x = 3,222,793,463.62/61,722.66
  6. Step 6: Final answer
    x = 52,214.11

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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.