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Finding the Fourth Proportional to 68,139.02, 93,978.48 and 44,273.45

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Solution

The fourth proportional to 68,139.02, 93,978.48 and 44,273.45 is: 61,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,139.02 : 93,978.48 = 44,273.45 : x
  2. Step 2: Convert to fraction form
    68,139.02/93,978.48 = 44,273.45/x
  3. Step 3: Cross multiply
    68,139.02x = 93,978.48 × 44,273.45
  4. Step 4: Simplify right side
    68,139.02x = 4,160,751,065.46
  5. Step 5: Solve for x
    x = 4,160,751,065.46/68,139.02
  6. Step 6: Final answer
    x = 61,062.68

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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.