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Finding the Fourth Proportional to 61,129.94, 84,359.54 and 35,653.89

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Solution

The fourth proportional to 61,129.94, 84,359.54 and 35,653.89 is: 49,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.94 : 84,359.54 = 35,653.89 : x
  2. Step 2: Convert to fraction form
    61,129.94/84,359.54 = 35,653.89/x
  3. Step 3: Cross multiply
    61,129.94x = 84,359.54 × 35,653.89
  4. Step 4: Simplify right side
    61,129.94x = 3,007,746,059.64
  5. Step 5: Solve for x
    x = 3,007,746,059.64/61,129.94
  6. Step 6: Final answer
    x = 49,202.51

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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.