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Finding the Fourth Proportional to 73,775.68, 101,811 and 40,241.68

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Solution

The fourth proportional to 73,775.68, 101,811 and 40,241.68 is: 55,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,775.68 : 101,811 = 40,241.68 : x
  2. Step 2: Convert to fraction form
    73,775.68/101,811 = 40,241.68/x
  3. Step 3: Cross multiply
    73,775.68x = 101,811 × 40,241.68
  4. Step 4: Simplify right side
    73,775.68x = 4,097,045,682.48
  5. Step 5: Solve for x
    x = 4,097,045,682.48/73,775.68
  6. Step 6: Final answer
    x = 55,533.82

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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.