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Finding the Fourth Proportional to 73,436.63, 101,342.81 and 39,902.63

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Solution

The fourth proportional to 73,436.63, 101,342.81 and 39,902.63 is: 55,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,436.63 : 101,342.81 = 39,902.63 : x
  2. Step 2: Convert to fraction form
    73,436.63/101,342.81 = 39,902.63/x
  3. Step 3: Cross multiply
    73,436.63x = 101,342.81 × 39,902.63
  4. Step 4: Simplify right side
    73,436.63x = 4,043,844,243.63
  5. Step 5: Solve for x
    x = 4,043,844,243.63/73,436.63
  6. Step 6: Final answer
    x = 55,065.77

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1.5x scale

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.