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Finding the Fourth Proportional to 61,754.15, 85,220.79 and 33,459.84

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Solution

The fourth proportional to 61,754.15, 85,220.79 and 33,459.84 is: 46,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,754.15 : 85,220.79 = 33,459.84 : x
  2. Step 2: Convert to fraction form
    61,754.15/85,220.79 = 33,459.84/x
  3. Step 3: Cross multiply
    61,754.15x = 85,220.79 × 33,459.84
  4. Step 4: Simplify right side
    61,754.15x = 2,851,473,830.77
  5. Step 5: Solve for x
    x = 2,851,473,830.77/61,754.15
  6. Step 6: Final answer
    x = 46,174.61

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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.