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Finding the Fourth Proportional to 62,405.40, 93,608.10 and 61,749.30

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Solution

The fourth proportional to 62,405.40, 93,608.10 and 61,749.30 is: 92,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,405.40 : 93,608.10 = 61,749.30 : x
  2. Step 2: Convert to fraction form
    62,405.40/93,608.10 = 61,749.30/x
  3. Step 3: Cross multiply
    62,405.40x = 93,608.10 × 61,749.30
  4. Step 4: Simplify right side
    62,405.40x = 5,780,234,649.33
  5. Step 5: Solve for x
    x = 5,780,234,649.33/62,405.40
  6. Step 6: Final answer
    x = 92,623.95

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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.