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Finding the Fourth Proportional to 74,462.44, 102,758.84 and 40,471.01

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Solution

The fourth proportional to 74,462.44, 102,758.84 and 40,471.01 is: 55,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,462.44 : 102,758.84 = 40,471.01 : x
  2. Step 2: Convert to fraction form
    74,462.44/102,758.84 = 40,471.01/x
  3. Step 3: Cross multiply
    74,462.44x = 102,758.84 × 40,471.01
  4. Step 4: Simplify right side
    74,462.44x = 4,158,754,041.23
  5. Step 5: Solve for x
    x = 4,158,754,041.23/74,462.44
  6. Step 6: Final answer
    x = 55,850.36

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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.