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Finding the Fourth Proportional to 132,068.64, 198,100.80 and 53,180.88

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Solution

The fourth proportional to 132,068.64, 198,100.80 and 53,180.88 is: 79,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,068.64 : 198,100.80 = 53,180.88 : x
  2. Step 2: Convert to fraction form
    132,068.64/198,100.80 = 53,180.88/x
  3. Step 3: Cross multiply
    132,068.64x = 198,100.80 × 53,180.88
  4. Step 4: Simplify right side
    132,068.64x = 10,535,174,872.70
  5. Step 5: Solve for x
    x = 10,535,174,872.70/132,068.64
  6. Step 6: Final answer
    x = 79,770.45

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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.