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Finding the Fourth Proportional to 117,447,606.80, 176,171,410.20 and 87,214,518.80

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Solution

The fourth proportional to 117,447,606.80, 176,171,410.20 and 87,214,518.80 is: 130,821,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,447,606.80 : 176,171,410.20 = 87,214,518.80 : x
  2. Step 2: Convert to fraction form
    117,447,606.80/176,171,410.20 = 87,214,518.80/x
  3. Step 3: Cross multiply
    117,447,606.80x = 176,171,410.20 × 87,214,518.80
  4. Step 4: Simplify right side
    117,447,606.80x = 15,364,704,766,910,410
  5. Step 5: Solve for x
    x = 15,364,704,766,910,410/117,447,606.80
  6. Step 6: Final answer
    x = 130,821,778.20

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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.