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Finding the Fourth Proportional to 61,130.25, 84,359.98 and 35,654.21

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Solution

The fourth proportional to 61,130.25, 84,359.98 and 35,654.21 is: 49,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,130.25 : 84,359.98 = 35,654.21 : x
  2. Step 2: Convert to fraction form
    61,130.25/84,359.98 = 35,654.21/x
  3. Step 3: Cross multiply
    61,130.25x = 84,359.98 × 35,654.21
  4. Step 4: Simplify right side
    61,130.25x = 3,007,788,181.08
  5. Step 5: Solve for x
    x = 3,007,788,181.08/61,130.25
  6. Step 6: Final answer
    x = 49,202.94

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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.