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Finding the Fourth Proportional to 61,800.95, 85,287.11 and 34,942.88

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Solution

The fourth proportional to 61,800.95, 85,287.11 and 34,942.88 is: 48,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,800.95 : 85,287.11 = 34,942.88 : x
  2. Step 2: Convert to fraction form
    61,800.95/85,287.11 = 34,942.88/x
  3. Step 3: Cross multiply
    61,800.95x = 85,287.11 × 34,942.88
  4. Step 4: Simplify right side
    61,800.95x = 2,980,176,911.28
  5. Step 5: Solve for x
    x = 2,980,176,911.28/61,800.95
  6. Step 6: Final answer
    x = 48,222.19

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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.