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Finding the Fourth Proportional to 88,412.80, 132,627.30 and 35,811.40

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Solution

The fourth proportional to 88,412.80, 132,627.30 and 35,811.40 is: 53,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,412.80 : 132,627.30 = 35,811.40 : x
  2. Step 2: Convert to fraction form
    88,412.80/132,627.30 = 35,811.40/x
  3. Step 3: Cross multiply
    88,412.80x = 132,627.30 × 35,811.40
  4. Step 4: Simplify right side
    88,412.80x = 4,749,569,291.22
  5. Step 5: Solve for x
    x = 4,749,569,291.22/88,412.80
  6. Step 6: Final answer
    x = 53,720.38

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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.