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Finding the Fourth Proportional to 61,811.15, 85,301.15 and 34,953.05

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Solution

The fourth proportional to 61,811.15, 85,301.15 and 34,953.05 is: 48,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.15 : 85,301.15 = 34,953.05 : x
  2. Step 2: Convert to fraction form
    61,811.15/85,301.15 = 34,953.05/x
  3. Step 3: Cross multiply
    61,811.15x = 85,301.15 × 34,953.05
  4. Step 4: Simplify right side
    61,811.15x = 2,981,534,759.74
  5. Step 5: Solve for x
    x = 2,981,534,759.74/61,811.15
  6. Step 6: Final answer
    x = 48,236.20

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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.