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Finding the Fourth Proportional to 61,147.77, 84,383.85 and 35,655.18

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Solution

The fourth proportional to 61,147.77, 84,383.85 and 35,655.18 is: 49,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,147.77 : 84,383.85 = 35,655.18 : x
  2. Step 2: Convert to fraction form
    61,147.77/84,383.85 = 35,655.18/x
  3. Step 3: Cross multiply
    61,147.77x = 84,383.85 × 35,655.18
  4. Step 4: Simplify right side
    61,147.77x = 3,008,721,360.84
  5. Step 5: Solve for x
    x = 3,008,721,360.84/61,147.77
  6. Step 6: Final answer
    x = 49,204.11

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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.