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Finding the Fourth Proportional to 132,080.64, 198,118.80 and 53,192.88

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Solution

The fourth proportional to 132,080.64, 198,118.80 and 53,192.88 is: 79,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,080.64 : 198,118.80 = 53,192.88 : x
  2. Step 2: Convert to fraction form
    132,080.64/198,118.80 = 53,192.88/x
  3. Step 3: Cross multiply
    132,080.64x = 198,118.80 × 53,192.88
  4. Step 4: Simplify right side
    132,080.64x = 10,538,509,554.14
  5. Step 5: Solve for x
    x = 10,538,509,554.14/132,080.64
  6. Step 6: Final answer
    x = 79,788.45

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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.