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Finding the Fourth Proportional to 129,150,688.80, 193,726,033.20 and 129,150,688.80

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Solution

The fourth proportional to 129,150,688.80, 193,726,033.20 and 129,150,688.80 is: 193,726,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,150,688.80 : 193,726,033.20 = 129,150,688.80 : x
  2. Step 2: Convert to fraction form
    129,150,688.80/193,726,033.20 = 129,150,688.80/x
  3. Step 3: Cross multiply
    129,150,688.80x = 193,726,033.20 × 129,150,688.80
  4. Step 4: Simplify right side
    129,150,688.80x = 25,019,850,626,271,668
  5. Step 5: Solve for x
    x = 25,019,850,626,271,668/129,150,688.80
  6. Step 6: Final answer
    x = 193,726,033.20

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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.