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Finding the Fourth Proportional to 134,573.40, 201,762.90 and 75,427.20

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Solution

The fourth proportional to 134,573.40, 201,762.90 and 75,427.20 is: 113,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,573.40 : 201,762.90 = 75,427.20 : x
  2. Step 2: Convert to fraction form
    134,573.40/201,762.90 = 75,427.20/x
  3. Step 3: Cross multiply
    134,573.40x = 201,762.90 × 75,427.20
  4. Step 4: Simplify right side
    134,573.40x = 15,218,410,610.88
  5. Step 5: Solve for x
    x = 15,218,410,610.88/134,573.40
  6. Step 6: Final answer
    x = 113,086.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.