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Finding the Fourth Proportional to 61,808.68, 85,297.66 and 34,955.18

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Solution

The fourth proportional to 61,808.68, 85,297.66 and 34,955.18 is: 48,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.68 : 85,297.66 = 34,955.18 : x
  2. Step 2: Convert to fraction form
    61,808.68/85,297.66 = 34,955.18/x
  3. Step 3: Cross multiply
    61,808.68x = 85,297.66 × 34,955.18
  4. Step 4: Simplify right side
    61,808.68x = 2,981,595,058.88
  5. Step 5: Solve for x
    x = 2,981,595,058.88/61,808.68
  6. Step 6: Final answer
    x = 48,239.10

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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.