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Finding the Fourth Proportional to 88,015.20, 132,022.80 and 53,023.20

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Solution

The fourth proportional to 88,015.20, 132,022.80 and 53,023.20 is: 79,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.20 : 132,022.80 = 53,023.20 : x
  2. Step 2: Convert to fraction form
    88,015.20/132,022.80 = 53,023.20/x
  3. Step 3: Cross multiply
    88,015.20x = 132,022.80 × 53,023.20
  4. Step 4: Simplify right side
    88,015.20x = 7,000,271,328.96
  5. Step 5: Solve for x
    x = 7,000,271,328.96/88,015.20
  6. Step 6: Final answer
    x = 79,534.80

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1.5x scale

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.