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Finding the Fourth Proportional to 61,808.02, 85,300.34 and 34,955.30

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Solution

The fourth proportional to 61,808.02, 85,300.34 and 34,955.30 is: 48,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.02 : 85,300.34 = 34,955.30 : x
  2. Step 2: Convert to fraction form
    61,808.02/85,300.34 = 34,955.30/x
  3. Step 3: Cross multiply
    61,808.02x = 85,300.34 × 34,955.30
  4. Step 4: Simplify right side
    61,808.02x = 2,981,698,974.80
  5. Step 5: Solve for x
    x = 2,981,698,974.80/61,808.02
  6. Step 6: Final answer
    x = 48,241.30

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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.