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Finding the Fourth Proportional to 175,508,978.40, 263,263,467.60 and 132,143,392.80

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Solution

The fourth proportional to 175,508,978.40, 263,263,467.60 and 132,143,392.80 is: 198,215,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,508,978.40 : 263,263,467.60 = 132,143,392.80 : x
  2. Step 2: Convert to fraction form
    175,508,978.40/263,263,467.60 = 132,143,392.80/x
  3. Step 3: Cross multiply
    175,508,978.40x = 263,263,467.60 × 132,143,392.80
  4. Step 4: Simplify right side
    175,508,978.40x = 34,788,527,808,956,872
  5. Step 5: Solve for x
    x = 34,788,527,808,956,872/175,508,978.40
  6. Step 6: Final answer
    x = 198,215,089.20

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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.