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Finding the Fourth Proportional to 61,305.84, 84,606.96 and 34,449.60

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Solution

The fourth proportional to 61,305.84, 84,606.96 and 34,449.60 is: 47,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,305.84 : 84,606.96 = 34,449.60 : x
  2. Step 2: Convert to fraction form
    61,305.84/84,606.96 = 34,449.60/x
  3. Step 3: Cross multiply
    61,305.84x = 84,606.96 × 34,449.60
  4. Step 4: Simplify right side
    61,305.84x = 2,914,675,929.22
  5. Step 5: Solve for x
    x = 2,914,675,929.22/61,305.84
  6. Step 6: Final answer
    x = 47,543.20

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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.