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Finding the Fourth Proportional to 73,638.94, 101,621.73 and 40,104.94

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Solution

The fourth proportional to 73,638.94, 101,621.73 and 40,104.94 is: 55,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,638.94 : 101,621.73 = 40,104.94 : x
  2. Step 2: Convert to fraction form
    73,638.94/101,621.73 = 40,104.94/x
  3. Step 3: Cross multiply
    73,638.94x = 101,621.73 × 40,104.94
  4. Step 4: Simplify right side
    73,638.94x = 4,075,533,280.69
  5. Step 5: Solve for x
    x = 4,075,533,280.69/73,638.94
  6. Step 6: Final answer
    x = 55,344.81

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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.