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Finding the Fourth Proportional to 72,368.78, 108,563.63 and 27,377.93

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Solution

The fourth proportional to 72,368.78, 108,563.63 and 27,377.93 is: 41,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,368.78 : 108,563.63 = 27,377.93 : x
  2. Step 2: Convert to fraction form
    72,368.78/108,563.63 = 27,377.93/x
  3. Step 3: Cross multiply
    72,368.78x = 108,563.63 × 27,377.93
  4. Step 4: Simplify right side
    72,368.78x = 2,972,247,954.76
  5. Step 5: Solve for x
    x = 2,972,247,954.76/72,368.78
  6. Step 6: Final answer
    x = 41,070.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.