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Finding the Fourth Proportional to 61,675.61, 85,112.19 and 33,381.32

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Solution

The fourth proportional to 61,675.61, 85,112.19 and 33,381.32 is: 46,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,675.61 : 85,112.19 = 33,381.32 : x
  2. Step 2: Convert to fraction form
    61,675.61/85,112.19 = 33,381.32/x
  3. Step 3: Cross multiply
    61,675.61x = 85,112.19 × 33,381.32
  4. Step 4: Simplify right side
    61,675.61x = 2,841,156,824.73
  5. Step 5: Solve for x
    x = 2,841,156,824.73/61,675.61
  6. Step 6: Final answer
    x = 46,066.14

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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.