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Finding the Fourth Proportional to 61,808.51, 85,297.42 and 34,955.03

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Solution

The fourth proportional to 61,808.51, 85,297.42 and 34,955.03 is: 48,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.51 : 85,297.42 = 34,955.03 : x
  2. Step 2: Convert to fraction form
    61,808.51/85,297.42 = 34,955.03/x
  3. Step 3: Cross multiply
    61,808.51x = 85,297.42 × 34,955.03
  4. Step 4: Simplify right side
    61,808.51x = 2,981,573,875.02
  5. Step 5: Solve for x
    x = 2,981,573,875.02/61,808.51
  6. Step 6: Final answer
    x = 48,238.89

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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.