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Finding the Fourth Proportional to 253,694,009.80, 380,541,014.70 and 132,509,715.40

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Solution

The fourth proportional to 253,694,009.80, 380,541,014.70 and 132,509,715.40 is: 198,764,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,694,009.80 : 380,541,014.70 = 132,509,715.40 : x
  2. Step 2: Convert to fraction form
    253,694,009.80/380,541,014.70 = 132,509,715.40/x
  3. Step 3: Cross multiply
    253,694,009.80x = 380,541,014.70 × 132,509,715.40
  4. Step 4: Simplify right side
    253,694,009.80x = 50,425,381,555,924,216
  5. Step 5: Solve for x
    x = 50,425,381,555,924,216/253,694,009.80
  6. Step 6: Final answer
    x = 198,764,573.10

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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.