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Finding the Fourth Proportional to 8,168,591.80, 12,256,824.30 and 5,767,265.80

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Solution

The fourth proportional to 8,168,591.80, 12,256,824.30 and 5,767,265.80 is: 8,653,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168,591.80 : 12,256,824.30 = 5,767,265.80 : x
  2. Step 2: Convert to fraction form
    8,168,591.80/12,256,824.30 = 5,767,265.80/x
  3. Step 3: Cross multiply
    8,168,591.80x = 12,256,824.30 × 5,767,265.80
  4. Step 4: Simplify right side
    8,168,591.80x = 70,688,363,601,998.94
  5. Step 5: Solve for x
    x = 70,688,363,601,998.94/8,168,591.80
  6. Step 6: Final answer
    x = 8,653,678.06

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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.