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Finding the Fourth Proportional to 88,459.20, 132,688.80 and 53,467.20

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Solution

The fourth proportional to 88,459.20, 132,688.80 and 53,467.20 is: 80,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,459.20 : 132,688.80 = 53,467.20 : x
  2. Step 2: Convert to fraction form
    88,459.20/132,688.80 = 53,467.20/x
  3. Step 3: Cross multiply
    88,459.20x = 132,688.80 × 53,467.20
  4. Step 4: Simplify right side
    88,459.20x = 7,094,498,607.36
  5. Step 5: Solve for x
    x = 7,094,498,607.36/88,459.20
  6. Step 6: Final answer
    x = 80,200.80

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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.