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Finding the Fourth Proportional to 61,124.07, 84,356.07 and 35,978.43

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Solution

The fourth proportional to 61,124.07, 84,356.07 and 35,978.43 is: 49,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,124.07 : 84,356.07 = 35,978.43 : x
  2. Step 2: Convert to fraction form
    61,124.07/84,356.07 = 35,978.43/x
  3. Step 3: Cross multiply
    61,124.07x = 84,356.07 × 35,978.43
  4. Step 4: Simplify right side
    61,124.07x = 3,034,998,959.57
  5. Step 5: Solve for x
    x = 3,034,998,959.57/61,124.07
  6. Step 6: Final answer
    x = 49,653.09

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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.