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Finding the Fourth Proportional to 88,462.40, 132,391.20 and 53,427.20

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Solution

The fourth proportional to 88,462.40, 132,391.20 and 53,427.20 is: 79,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,462.40 : 132,391.20 = 53,427.20 : x
  2. Step 2: Convert to fraction form
    88,462.40/132,391.20 = 53,427.20/x
  3. Step 3: Cross multiply
    88,462.40x = 132,391.20 × 53,427.20
  4. Step 4: Simplify right side
    88,462.40x = 7,073,291,120.64
  5. Step 5: Solve for x
    x = 7,073,291,120.64/88,462.40
  6. Step 6: Final answer
    x = 79,958.16

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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.