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Finding the Fourth Proportional to 61,179.81, 84,428.33 and 34,322.33

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Solution

The fourth proportional to 61,179.81, 84,428.33 and 34,322.33 is: 47,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,179.81 : 84,428.33 = 34,322.33 : x
  2. Step 2: Convert to fraction form
    61,179.81/84,428.33 = 34,322.33/x
  3. Step 3: Cross multiply
    61,179.81x = 84,428.33 × 34,322.33
  4. Step 4: Simplify right side
    61,179.81x = 2,897,777,043.07
  5. Step 5: Solve for x
    x = 2,897,777,043.07/61,179.81
  6. Step 6: Final answer
    x = 47,364.93

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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.