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Finding the Fourth Proportional to 68,995,406.40, 103,493,109.60 and 58,736,626.80

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Solution

The fourth proportional to 68,995,406.40, 103,493,109.60 and 58,736,626.80 is: 88,104,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,995,406.40 : 103,493,109.60 = 58,736,626.80 : x
  2. Step 2: Convert to fraction form
    68,995,406.40/103,493,109.60 = 58,736,626.80/x
  3. Step 3: Cross multiply
    68,995,406.40x = 103,493,109.60 × 58,736,626.80
  4. Step 4: Simplify right side
    68,995,406.40x = 6,078,836,154,946,697
  5. Step 5: Solve for x
    x = 6,078,836,154,946,697/68,995,406.40
  6. Step 6: Final answer
    x = 88,104,940.20

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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.