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Finding the Fourth Proportional to 61,402.89, 92,071.78 and 37,721.27

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Solution

The fourth proportional to 61,402.89, 92,071.78 and 37,721.27 is: 56,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,402.89 : 92,071.78 = 37,721.27 : x
  2. Step 2: Convert to fraction form
    61,402.89/92,071.78 = 37,721.27/x
  3. Step 3: Cross multiply
    61,402.89x = 92,071.78 × 37,721.27
  4. Step 4: Simplify right side
    61,402.89x = 3,473,064,472.76
  5. Step 5: Solve for x
    x = 3,473,064,472.76/61,402.89
  6. Step 6: Final answer
    x = 56,561.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.