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Finding the Fourth Proportional to 73,302.87, 101,158.16 and 39,768.87

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Solution

The fourth proportional to 73,302.87, 101,158.16 and 39,768.87 is: 54,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,302.87 : 101,158.16 = 39,768.87 : x
  2. Step 2: Convert to fraction form
    73,302.87/101,158.16 = 39,768.87/x
  3. Step 3: Cross multiply
    73,302.87x = 101,158.16 × 39,768.87
  4. Step 4: Simplify right side
    73,302.87x = 4,022,945,515.63
  5. Step 5: Solve for x
    x = 4,022,945,515.63/73,302.87
  6. Step 6: Final answer
    x = 54,881.15

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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.