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Finding the Fourth Proportional to 78,273.87, 108,016.42 and 44,281.01

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Solution

The fourth proportional to 78,273.87, 108,016.42 and 44,281.01 is: 61,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,273.87 : 108,016.42 = 44,281.01 : x
  2. Step 2: Convert to fraction form
    78,273.87/108,016.42 = 44,281.01/x
  3. Step 3: Cross multiply
    78,273.87x = 108,016.42 × 44,281.01
  4. Step 4: Simplify right side
    78,273.87x = 4,783,076,174.18
  5. Step 5: Solve for x
    x = 4,783,076,174.18/78,273.87
  6. Step 6: Final answer
    x = 61,106.93

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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.