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Finding the Fourth Proportional to 62,136.81, 85,748.78 and 33,842.50

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Solution

The fourth proportional to 62,136.81, 85,748.78 and 33,842.50 is: 46,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,136.81 : 85,748.78 = 33,842.50 : x
  2. Step 2: Convert to fraction form
    62,136.81/85,748.78 = 33,842.50/x
  3. Step 3: Cross multiply
    62,136.81x = 85,748.78 × 33,842.50
  4. Step 4: Simplify right side
    62,136.81x = 2,901,952,957.38
  5. Step 5: Solve for x
    x = 2,901,952,957.38/62,136.81
  6. Step 6: Final answer
    x = 46,702.64

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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.