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Finding the Fourth Proportional to 61,902.60, 85,425.95 and 36,410.05

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Solution

The fourth proportional to 61,902.60, 85,425.95 and 36,410.05 is: 50,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,902.60 : 85,425.95 = 36,410.05 : x
  2. Step 2: Convert to fraction form
    61,902.60/85,425.95 = 36,410.05/x
  3. Step 3: Cross multiply
    61,902.60x = 85,425.95 × 36,410.05
  4. Step 4: Simplify right side
    61,902.60x = 3,110,363,110.80
  5. Step 5: Solve for x
    x = 3,110,363,110.80/61,902.60
  6. Step 6: Final answer
    x = 50,246.08

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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.