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Finding the Fourth Proportional to 73,436.81, 101,343.42 and 39,902.81

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Solution

The fourth proportional to 73,436.81, 101,343.42 and 39,902.81 is: 55,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,436.81 : 101,343.42 = 39,902.81 : x
  2. Step 2: Convert to fraction form
    73,436.81/101,343.42 = 39,902.81/x
  3. Step 3: Cross multiply
    73,436.81x = 101,343.42 × 39,902.81
  4. Step 4: Simplify right side
    73,436.81x = 4,043,887,233.01
  5. Step 5: Solve for x
    x = 4,043,887,233.01/73,436.81
  6. Step 6: Final answer
    x = 55,066.22

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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.