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Finding the Fourth Proportional to 61,599.89, 92,211.21 and 39,434.65

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Solution

The fourth proportional to 61,599.89, 92,211.21 and 39,434.65 is: 59,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,599.89 : 92,211.21 = 39,434.65 : x
  2. Step 2: Convert to fraction form
    61,599.89/92,211.21 = 39,434.65/x
  3. Step 3: Cross multiply
    61,599.89x = 92,211.21 × 39,434.65
  4. Step 4: Simplify right side
    61,599.89x = 3,636,316,561.90
  5. Step 5: Solve for x
    x = 3,636,316,561.90/61,599.89
  6. Step 6: Final answer
    x = 59,031.22

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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.