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Finding the Fourth Proportional to 61,803.10, 92,899.05 and 60,636.70

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Solution

The fourth proportional to 61,803.10, 92,899.05 and 60,636.70 is: 91,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.10 : 92,899.05 = 60,636.70 : x
  2. Step 2: Convert to fraction form
    61,803.10/92,899.05 = 60,636.70/x
  3. Step 3: Cross multiply
    61,803.10x = 92,899.05 × 60,636.70
  4. Step 4: Simplify right side
    61,803.10x = 5,633,091,825.14
  5. Step 5: Solve for x
    x = 5,633,091,825.14/61,803.10
  6. Step 6: Final answer
    x = 91,145.78

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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.